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Microsoft patches critical Entra ID vulnerability (CVE-2026-69836)

Microsoft patched critical Entra ID RCE CVE-2026-69836 (CVSS 10.0), fully mitigated server-side with no customer action; no in-the-wild exploitation confirmed.

Microsoft patched CVE-2026-69836, a critical (maximum CVSS 10.0) unauthenticated remote code execution flaw in Entra ID caused by deserialization of untrusted data over a network. Entra ID, formerly Azure Active Directory, is Microsoft's cloud identity service verifying logins and controlling access to Microsoft 365, Azure, and connected third-party apps. The flaw was discovered by Microsoft Principal Security Engineer Robert Fitzpatrick and fully mitigated server-side, requiring no customer action. Microsoft initially reported the bug as exploited, but later changed the status to 'no' and confirmed the vulnerability was not exploited in the wild.

Help Net SecurityAug 24, 06:16 UTC · 24d agoVulnerability CVE-2026-69836

Microsoft Patches Severe Entra ID Flaw (CVSS 10.0) Allowing Remote Code Execution

Microsoft patched CVE-2026-69836 (CVSS 10.0), a deserialization RCE in Entra ID; the flaw was fully mitigated service-side and was not exploited in the wild.

Microsoft disclosed CVE-2026-69836, a CVSS 10.0 remote code execution flaw in Entra ID caused by deserialization of untrusted data, and said the issue was fully mitigated on the service side with no customer action required. The security bulletin initially marked the flaw as exploited, but Microsoft corrected the status to not exploited in the wild on August 21, 2026. Microsoft credited principal security engineer Robert Fitzpatrick with the discovery. The article also recalls the Lazarus Group's exploitation of Windows WinSock AFD zero-day CVE-2026-68820 (CVSS 7.0) in the Operation Dream Job campaign.

The Hacker NewsAug 21, 19:56 UTC · 26d agoVulnerability CVE-2026-69836 CVE-2026-688201

CVE-2026-86466: Apache Airflow FAB provider: FAB Authentik provider: id_token issuer/audience not validated

Apache Airflow FAB provider before 3.9.0 skips issuer/audience validation on Authentik id_tokens, allowing tokens minted for other clients to authenticate to Airflow.

CVE-2026-86466 affects apache-airflow-providers-fab before 3.9.0. The Authentik OAuth path in the FAB auth manager does not validate the issuer or audience claims of accepted id_tokens. An attacker holding a token minted by the same Authentik identity provider for a different client application can present it to Airflow and be authenticated. Severity is rated moderate by the reporter.

oss-securitySep 15, 20:01 UTC · 1d agoVulnerability 3 sources CVE-2026-864661

CVE-2026-86206, CVE-2026-86207: N-able N-central Authentication Bypass (FIXED)

Rapid7 disclosed two chained N-able N-central flaws, CVE-2026-86206 and CVE-2026-86207, enabling unauthenticated admin account creation; patched in 2026.3 Hotfix 3.

Rapid7 researchers found CVE-2026-86206 (semicolon/Forwarded access-control bypass, CWE-791, CVSSv4 6.9) and CVE-2026-86207 (UserTwoFactorLogin authentication bypass, CWE-305, CVSSv4 7.7) in the latest N-able N-central. Chained, they let a remote unauthenticated attacker create an attacker-controlled System administrator account. The bugs stem from Envoy and Jetty disagreeing on the requested path and whether the client is local. N-able patched both in N-central 2026.3 Hotfix 3, following the earlier CVE-2026-18577 authentication bypass.

Rapid7 BlogSep 8, 11:01 UTC · 8d agoVulnerability CVE-2026-86206 CVE-2026-86207 CVE-2026-18577

CVE-2026-75156: Apache Airflow FAB provider: FAB Azure AD OAuth: id_token issuer/audience not validated — cross-tenant authentication bypass

Apache Airflow FAB provider flaw (CVE-2026-75156) lets attackers bypass Azure AD OAuth token validation via unvalidated issuer and audience claims.

Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD id_tokens during OAuth login, enabling cross-tenant authentication bypass. The issue affects deployments where the FAB auth manager is configured with Azure AD as an OAuth provider. A fix is available in version 3.8.1. Severity is rated moderate.

oss-securitySep 8, 16:37 UTC · 8d agoVulnerability CVE-2026-75156

Microsoft Patch Tuesday, September 2026 Security Update Review

Microsoft's September 2026 Patch Tuesday fixes 974 vulnerabilities, including 113 critical and two actively exploited Windows privilege escalation flaws.

Microsoft's September 2026 Patch Tuesday fixes 974 vulnerabilities, its largest release ever, including 113 critical and 860 important, covering Windows HTTP.sys, Hyper-V, Entra ID, Exchange Server, Office, DNS, and more. Two zero-days are confirmed exploited in the wild: CVE-2026-81963 (Windows Update Stack EoP) and CVE-2026-85880 (ALPC heap overflow), both letting authenticated attackers gain SYSTEM privileges. Notable criticals include an Entra ID authentication bypass (CVE-2026-62916) and multiple Windows DNS Server and Office remote code execution flaws.

Qualys ThreatPROTECTSep 9, 12:23 UTC · 7d agoVulnerability in the wildCVE-2026-81963 CVE-2026-85880 CVE-2026-58599+27 CVEs

Zero Day Initiative — CVE-2026-33824: Remote Code Execution in Windows ...

ZDI details CVE-2026-33824, a double-free in Windows IKEv2 fragment reassembly enabling unauthenticated remote code execution as SYSTEM on Windows.

Zero Day Initiative published technical analysis of CVE-2026-33824, a double-free in the Windows IKE Extension (ikeext.dll) caused by improper ownership handling of a heap blob pointer during IKEv2 fragment reassembly in IkeReinjectReassembledPacket(). A remote unauthenticated attacker can send a crafted IKE_SA_INIT message with a Security Realm Vendor ID followed by fragmented IKE_AUTH payloads to trigger the double free. Successful exploitation could yield arbitrary code execution under the IKEEXT service context (SYSTEM). ZDI also provided IDS detection guidance correlating the two-packet sequence on UDP ports 500 and 4500.

Web discovery (articles for new exploits & KEV entries)Sep 7, 19:06 UTC · 9d agoVulnerability CVE-2026-33824

pcre2 version 10.48 released with security fixes

PCRE2 10.48 released with security fixes; none have CVE IDs assigned yet, details limited to release notes.

The PCRE2 project released version 10.48 including security fixes, announced on the oss-security mailing list. As of publication, none of the fixes had CVE identifiers assigned, and specifics are only available via the project's release notes and security advisories page.

oss-securitySep 4, 23:27 UTC · 12d agoVulnerability

VU#889462: Casdoor authentication server is vulnerable to authorization bypass

Casdoor IAM versions 3.115.0 and earlier allow organization admins to bypass tenant isolation through inconsistent authorization checks, tracked as CVE-2026-15630.

CERT/CC published VU#889462 describing an authorization bypass in Casdoor, an open-source access management platform, affecting versions 3.115.0 and earlier. The flaw (CVE-2026-15630) stems from controllers ignoring the ?id= query parameter used for authorization decisions and acting on JSON body fields instead, letting a single-organization administrator perform unauthorized administrative actions against arbitrary organizations in multi-tenant deployments. Impact can escalate to complete tenant-isolation compromise and potential compromise of the entire Casdoor instance, including SSO/SAML disruption. No vendor patch is available because researchers could not reach Casdoor; mitigations include least privilege, MFA for admin accounts, and alerting on cross-organization administrative activity.

CERT/CC Vulnerability NotesSep 3, 17:03 UTC · 13d agoVulnerability CVE-2026-15630

Unpatched Kaltura mwEmbed Flaws Could Let Remote Attackers Read Files and Run Code

CERT/CC disclosed unpatched Kaltura mwEmbed flaws CVE-2026-19913 and CVE-2026-19912 allowing unauthenticated file reads and remote code execution.

CERT/CC disclosed two unpatched flaws in Kaltura's mwEmbed HTML5 player library, both rooted in unsafe deserialization in mwEmbedLoader.php and exploitable without authentication. CVE-2026-19913 (reporter-scored 9.1) reflects local file contents back via the ServiceUrl parameter, exposing secrets in local.ini; CVE-2026-19912 (reporter-scored 10.0) achieves PHP code execution by writing attacker-controlled objects into web-accessible directories via the uiconf_id parameter. No patch exists and CERT/CC could not reach Kaltura; affected releases include html5lib v2.45, v2.103 and earlier, with the shared multi-tenant CDN hosts also impacted. No exploitation or KEV listing was reported as of August 25, 2026.

The Hacker NewsAug 26, 11:55 UTC · 21d agoVulnerability CVE-2026-19913 CVE-2026-199121

Flock cameras are riddled with security vulnerabilities and hardcoded creds

Leaked Flock ALPR camera firmware reveals EOL Android 8.1, a 2017 Linux kernel, and hardcoded API keys granting access to production credentials.

DDoSecrets published filesystem images from an in-use Flock ALPR camera, obtained by the hacker collective stegan0gram and investigated by 404 Media and Wired. Micah Lee's analysis shows the camera runs Android 8.1 with a security patch level of 2018-06-05 and Linux kernel 3.18.71, missing roughly eight years of Android fixes. The firmware exposes a hardcoded API key for Flock's hpnotiq backend that can retrieve Auth0 client credentials for any camera by MAC address, with credentials stored in plaintext. Likely unpatched flaws include CVE-2021-1905 (Qualcomm Adreno use-after-free) and CVE-2018-9568 (WrongZone kernel socket type confusion); Flock says it received no reports via its disclosure policy.

Hacker News · securitySep 16, 22:19 UTC · 9h agoVulnerability 3 sources HN 35↑ · 3 comments CVE-2021-1905 CVE-2018-9568

Patch Tuesday - September 2026

Microsoft's September 2026 Patch Tuesday fixes 999 CVEs, a record, with two zero-day privilege escalation flaws already exploited in the wild.

Microsoft published 974 own-product vulnerabilities plus 25 non-Microsoft CVEs, totaling 999 — the most CVEs Microsoft has ever released in a single day. Two flaws are exploited in the wild: CVE-2026-85880, an out-of-bounds write in Windows ALPC granting SYSTEM privileges, and CVE-2026-81963, an improper link resolution flaw in the Windows Update Stack also leading to SYSTEM. Chrome's V8 zero-day CVE-2026-85046 was patched in Edge on September 2, but Microsoft had not published a corresponding advisory, leaving uncertainty about other Chromium fixes in Edge. October 14 lifecycle changes end servicing for Windows 11 24H2 Home/Pro, Office 2021, and Exchange Server 2016/2019.

Rapid7 BlogSep 8, 21:44 UTC · 8d agoVulnerability in the wildCVE-2026-85880 CVE-2026-81963 CVE-2026-85046+10 CVEs

September 2026 Microsoft Patch Tuesday, (Tue, Sep 8th)

Microsoft's September 2026 Patch Tuesday fixes a record 973 vulnerabilities, including 113 critical and two Windows privilege-escalation flaws already exploited in the wild.

Microsoft patched 973 vulnerabilities this month, its largest Patch Tuesday ever and far above the previous record of 664 set in July 2026, with 113 rated critical. Two Important elevation-of-privilege flaws (CVSS 7.8) are confirmed exploited in the wild: CVE-2026-81963 in the Windows Update Stack (improper link resolution, affects Windows 11 and Server 2025) and CVE-2026-85880 in Windows ALPC (heap-based buffer overflow allowing sandbox escape to SYSTEM, affects Windows 10 and Server 2012-2022). Critical unauthenticated RCEs (CVSS 9.8) were also fixed in Skype for Business Server (CVE-2026-66302), Windows Message Queuing (CVE-2026-69579), and Windows RRAS (CVE-2026-69590). SANS urges prioritizing the two exploited EoP fixes, then patching exposed MSMQ, RRAS, and Skype for Business deployments.

SANS Internet Storm CenterSep 8, 19:20 UTC · 8d agoVulnerability in the wildCVE-2026-81963 CVE-2026-85880 CVE-2026-66302+5 CVEs2

VU#859658: Skullcandy Dime 3 wireless earbuds contain an unauthenticated Bluetooth pairing vulnerability

Skullcandy Dime 3 earbuds (CVE-2025-20701) accept Bluetooth pairings without owner consent, letting in-range attackers hijack audio or capture microphone; no firmware update path exists.

CERT/CC's VU#859658 describes CVE-2025-20701 in the Airoha Bluetooth audio SDK, present in Skullcandy Dime 3 (Model S2DCW) firmware 1.0.0.28. A direct Bluetooth Classic pairing request with no PIN or physical confirmation completes via NoInputNoOutput, adding the attacker's device as trusted. Attackers in radio range can hijack the A2DP audio session, access the Hands-Free/Headset profile, and capture live microphone audio. Firmware 1.0.0.30 contains the effective patch, but Skullcandy says the Dime 3 does not support app-based firmware updates, leaving existing units unpatchable.

CERT/CC Vulnerability NotesSep 8, 14:42 UTC · 8d agoVulnerability CVE-2025-20701

Flextype v1.0.0-alpha.3 Path Traversal in Entry Copy Allows Arbitrary Directory Copy and File Disclosure

Flextype CMS v1.0.0-alpha.3 entries copy endpoint accepts path traversal in source and destination parameters, enabling arbitrary directory copies and file disclosure.

Flextype CMS v1.0.0-alpha.3 constructs entry directory paths in the copy functionality by directly concatenating supplied entry identifiers with the configured entries directory. The /api/v1/entries/copy endpoint accepts directory traversal sequences in both the source id and destination new_id parameters. An authenticated remote attacker can thereby copy arbitrary directories and disclose files outside the intended entries directory. Ron E disclosed the issue on the Full Disclosure mailing list on September 3, 2026.

Full DisclosureSep 4, 00:13 UTC · 13d agoVulnerability 8 sources

Critical Check Point Vulnerability Allows Remote Root Code Execution Without Authentication

Check Point patched CVE-2026-91843 (CVSS 9.8), an unauthenticated stack overflow enabling remote root code execution on Security Management and Log Servers.

Check Point issued a high-severity alert for CVE-2026-91843, a critical stack overflow (CVSS 9.8, solution sk1000155) in the unauthenticated login workflow of Security Management Server, Multi-Domain Security Management Server, Log Server, and Multi-Domain Log Server. Successful exploitation grants an unauthenticated remote attacker root-level code execution. Affected releases span R80 through R82.20 with Jumbo Hotfix takes at or below specified levels (e.g., R82.20 Take 44, R81.20 Take 166), with several older versions end of support. A LivePatch is available and offline urgent bundles (R81.20-R82.20 Takes 28-29) were released; Smart-1 Cloud is already protected.

GBHackers05:23 UTC · 2h agoVulnerability 10 sources CVE-2026-918431

VU#212479: Sentry Seer vulnerability allows attacker-controlled input to be executed in a privileged environment

CERT/CC details CVE-2026-90999: attacker-controlled Sentry telemetry can steer the Seer coding agent into executing attacker code with repository access.

CERT/CC published VU#212479 for CVE-2026-90999 in Sentry Seer: attacker-submitted events through public DSN endpoints flow into Seer's root-cause analysis, which is embedded directly into the coding agent's initial prompt. In the documented chain, the privileged coding agent downloads and executes an attacker-controlled package before any human review, yielding arbitrary code execution with access to connected source repositories. No vendor patch is available yet; mitigations include disabling automated remediation, restricting coding-agent package installation, and filtering telemetry before Seer analysis.

CERT/CC Vulnerability NotesSep 16, 15:18 UTC · 16h agoVulnerability CVE-2026-90999

Parallels Desktop flaw hands any local user root on a Mac (CVE-2026-90894)

CVE-2026-90894 in Parallels Desktop for Mac lets any local user gain root via argument injection; patched in v27.0.0, PoC withheld.

JFrog researchers disclosed CVE-2026-90894, an argument injection flaw in Parallels Desktop for Mac v26.4.0 on Apple silicon that lets any local user gain root on the host. The chain combines a world-writable Unix socket for prl_disp_service (which runs as root), weak peer-credential authentication, and argument injection via --use-compress-program in the appliance extraction tar path. Alludo fixed the flaw in Parallels Desktop v27.0.0 in early September 2026; JFrog published technical details but withheld its proof-of-concept script.

Help Net Securityupdated Sep 16, 13:14 UTC · 18h agofirst Sep 16, 12:36 UTC · 19h agoVulnerability 4 sources CVE-2026-90894

CVE-2026-76187: Apache Airflow Keycloak provider: Any realm client's credentials mint an Airflow session JWT

Apache Airflow Keycloak provider before 0.10.0 lets any confidential client's credentials in the realm mint an Airflow session JWT.

CVE-2026-76187 affects apache-airflow-providers-keycloak before 0.10.0. The unauthenticated token endpoint accepts a client-credentials grant for any confidential client registered in the Keycloak realm, not only the client configured for Airflow. No allowlist restricts which client ids may authenticate, so credentials of an unrelated application can obtain an Airflow session JWT. Severity is rated moderate.

oss-securitySep 15, 19:54 UTC · 1d agoVulnerability 2 sources CVE-2026-76187

WordPress Events Calendar Vulnerabilities Let Hackers Take Over 600,000 Websites

Two unauthenticated RCE flaws (CVSS 9.8) in The Events Calendar WordPress plugin threaten 600,000 sites; patched in 6.17.4.1.

Wordfence Argus disclosed two critical unauthenticated vulnerability chains in The Events Calendar WordPress plugin, tracked as CVE-2026-78006 and CVE-2026-78159, both scoring 9.8 CVSS. CVE-2026-78006 enables PHP object injection leading to RCE via a Lazy_Post_Collection gadget chain, while CVE-2026-78159 abuses Element_Classes::parse_array() to invoke wp_update_user() and reset the admin password. Exploitation works by injecting wp:legacy-widget Gutenberg markup through comments, using WordPress's moderation-preview hash to trigger the block before approval. StellarWP patched both flaws in version 6.17.4.1 after Wordfence's August 2026 disclosure.

GBHackersupdated Sep 16, 11:32 UTC · 20h agofirst Sep 15, 11:24 UTC · 1d agoVulnerability 3 sources CVE-2026-78006 CVE-2026-78159

VU#369611: ExLlamaV3 contains Denial of Service vulnerability via insufficient bounds checking on kernel dispatch index

CERT/CC details CVE-2026-84286, an out-of-bounds memory access in ExLlamaV3's CUDA extension causing denial-of-service crashes; fixed via merged pull request.

CERT/CC published VU#369611 for CVE-2026-84286, an out-of-bounds memory access in the exllamav3_ext CUDA extension of the ExLlamaV3 LLM inference library. A crafted input with kernel parameter K set to 0 produces a negative index into a fixed 24-entry kernel dispatch array, causing a CUDA illegal memory access and denial-of-service crashes. The vendor fixed the issue in the main repository via pull request #310, and maintainers of 49 downstream projects, including ezexl3 and MawDiscord, are advised to rebuild against the patched version. The issue was reported by Nathan Keys and impact is limited to crashes and instability, not code execution.

CERT/CC Vulnerability NotesSep 11, 20:11 UTC · 5d agoVulnerability CVE-2026-842861

GitLab’s critical flaw is already drawing internet-wide probes

GitLab patches two critical flaws (CVE-2026-85706 CVSS 10.0, CVE-2026-87719) as WatchTowr observes internet-wide probing of the unauthenticated file-read bug.

GitLab released emergency patches for two high-severity flaws in Community and Enterprise Editions, urging self-managed operators to upgrade immediately while saying its hosted and Dedicated offerings are fixed or unaffected. CVE-2026-85706 (CVSS 10.0) is a path traversal in the repository commits interface that lets unauthenticated attackers read any file on the server and affects releases 18.7 through 19.1.8 plus the 19.2 and 19.3 lines before patching. CVE-2026-87719 (CVSS 9.9, Enterprise Edition only) lets a logged-in Duo Chat user hide a command in a request that triggers Advanced Search settings and password disclosure. WatchTowr Labs reported it is already watching probes that can trigger the path traversal flaw in a single HTTP request, though CISA had not added either issue to the KEV list as of Friday afternoon.

CyberScoopupdated Sep 15, 00:52 UTC · 2d agofirst Sep 11, 18:41 UTC · 5d agoVulnerability in the wild 18 sources CVE-2026-85706 CVE-2026-87719

Remote Desktop Services Failures on Windows Servers Following September Update

September 2026 Patch Tuesday updates cause Windows Server 2019/2022/2025 RDS sessions to freeze, forcing administrators to roll back.

Cumulative updates KB5122876 (Windows Server 2019), KB5122882 (2022), and KB5122871 (2025) trigger Remote Desktop Services freezes hours after boot, with RDP connections hanging at 'Connecting…' and Event ID 20498 logged. Administrators trace the fault to an apparent deadlock in RDPSERVERBASE!WDLIB_Close during session teardown; only hard resets restore service and the issue recurs. The same September release patched roughly 973 vulnerabilities, including two actively exploited zero-days (CVE-2026-81963, CVE-2026-85880, both in CISA's KEV) and a critical RDS RCE, CVE-2026-69525 (CVSS 9.8). Workarounds include DISM-based removal of the update or an unofficial FeatureManagement registry key disabling the suspected audio-redirection code path; Microsoft has not yet confirmed the bug.

Cyber Security NewsSep 11, 04:46 UTC · 6d agoVulnerability in the wild 2 sources CVE-2026-81963 CVE-2026-85880 CVE-2026-69525+1 CVEs1

Skullcandy Dime 3 Bluetooth Flaw Lets Nearby Attackers Hijack Audio and Spy Through Microphone

Skullcandy Dime 3 earbuds on firmware 1.0.0.28 accept unauthenticated Bluetooth pairing via Airoha SDK flaw CVE-2025-20701, enabling audio hijack and microphone capture.

CERT/CC vulnerability note VU#859658 describes insecure Bluetooth Classic (BR/EDR) pairing on Skullcandy Dime 3 (model S2DCW) firmware 1.0.0.28, linked to CVE-2025-20701 in the Airoha Bluetooth audio SDK. The NoInputNoOutput I/O capability lets unknown nearby devices pair without pairing mode, PIN, passkey or user interaction, then bond and automatically reconnect. An attacker can hijack the A2DP audio session and access Hands-Free or Headset profiles to capture live microphone audio. Firmware 1.0.0.30 reportedly fixes the flaw, but the earbuds cannot be updated through the Skullcandy app, leaving current users without a consumer-accessible patch path.

Cyber Security NewsSep 11, 04:16 UTC · 6d agoVulnerability 2 sources CVE-2025-20701

Nearly 1 in 10 Exposed LiteLLM Gateways Accepted the Example "sk-1234" Admin Key

Wiz found 294 of 3,074 internet-facing LiteLLM gateways accepted the documented default admin key sk-1234, exposing provider API keys and cloud IAM credentials.

Wiz Research's February Shodan scan found 3,074 LiteLLM gateways, 294 of which accepted the setup guide's sk-1234 admin key; 191 had no master key set and would accept any credential. The master key doubles as the authentication switch, and before 1.82.0-stable a gateway started without one granted every request full admin rights, exposing stored provider API keys, prompts, and MCP-connected tools. A documented pass-through endpoint lacks checks against private and cloud metadata addresses, letting an admin-key holder retrieve cloud IAM credentials, though no real-world abuse is reported. Related LiteLLM flaws include CVE-2026-59821 (disputed guardrail code execution), CVE-2026-59822 (CVSS 8.8, added to CISA KEV on September 2 and observed against Wiz honeypots), and CVE-2026-42271, used to install a cryptominer.

The Hacker NewsSep 10, 07:12 UTC · 7d agoVulnerability in the wildCVE-2026-59821 CVE-2026-59822 CVE-2026-42271+2 CVEs

Memory-safety defects in the upstream (abandoned) AOSP OpenCORE AAC decoder, shipped unpatched by Samsung TizenRT

Abandoned AOSP OpenCORE AAC decoder has out-of-bounds-write and wild-pointer flaws reachable from attacker-controlled frames, unpatched in Samsung TizenRT.

The OpenCORE AAC decoder in AOSP's abandoned external/opencore tree contains memory-safety defects of the out-of-bounds-write and wild-pointer class. The code is still vendored and built by multiple projects, most notably Samsung's widely deployed TizenRT embedded RTOS. The defects are reachable from untrusted media because an AAC frame is attacker-controlled. The researcher is requesting a CVE ID for the issue.

oss-securitySep 10, 01:12 UTC · 7d agoVulnerability1

Microsoft’s Biggest Patch Tuesday: 974 CVEs, 2 Zero-Days and 20 Wormable Bugs

Microsoft's record September 2026 Patch Tuesday fixes 974 CVEs, including two exploited Windows privilege-escalation zero-days and 20 wormable bugs.

Microsoft's September 2026 Patch Tuesday fixes a record 974 CVEs, including two actively exploited zero-days: CVE-2026-85880, an ALPC heap buffer overflow, and CVE-2026-81963 in the Windows Update Stack, both CVSS 7.8 local privilege escalations. It also addresses an unauthenticated Exchange RCE (CVE-2026-55007) triggered by Visio attachment content indexing under memory pressure, an RDP use-after-free (CVE-2026-69525, CVSS 9.8), and 20 wormable flaws in DNS, DHCP, SMB, Active Directory, and other components. ZDI attributed the rising volume partly to AI-assisted vulnerability discovery, noting no corresponding spike in active exploits yet.

Security AffairsSep 9, 07:03 UTC · 8d agoVulnerability in the wildCVE-2026-85880 CVE-2026-81963 CVE-2026-55007+3 CVEs2

Microsoft Patch Tuesday Update September 2026 – 974 Vulnerabilities Fixed, Including 2 Zero-Days

Microsoft's September 2026 Patch Tuesday fixes 974 vulnerabilities across Windows and Office, including two actively exploited Windows privilege-escalation zero-days.

Microsoft's September 2026 Patch Tuesday addresses 974 vulnerabilities spanning Windows, Office, SQL Server, SharePoint, Exchange, Azure, and developer tools. Two Windows zero-days are confirmed exploited in attacks: CVE-2026-85880, a Windows ALPC elevation-of-privilege flaw, and CVE-2026-81963, a Windows Update Stack privilege-escalation flaw involving link following. The release also includes Critical fixes for Windows Secure Kernel Mode, VBS Enclave, Excel, and Word.

Cyber Security NewsSep 8, 17:46 UTC · 8d agoVulnerability in the wildCVE-2026-85880 CVE-2026-81963 CVE-2026-83939+15 CVEs1

VU#718077: UEFI Shell module embedded in SPI Flash can be used to bypass Secure Boot

CERT/CC details VU#718077: UEFI Shell embedded in SPI flash lets attackers bypass Secure Boot and execute pre-boot code; patches issued.

CERT/CC's VU#718077, reported by Eclypsium researcher Stas Lyakhov, describes how a UEFI Shell embedded in SPI flash can be abused by attackers who can modify UEFI boot configuration, creating multiple boot entries that bypass controls preventing the Shell from launching under Secure Boot. The Shell's dmem and mm commands allow arbitrary physical memory read/write, letting attackers overwrite Secure Boot values and execute unauthorized pre-boot code that can persist across reboots and OS reinstalls while degrading EDR effectiveness. AMI confirmed its Aptio UEFI BDS module is affected (CVE-2026-33197), and Cisco published an advisory for a variation affecting UCS Servers and UCS-based appliances (CVE-2026-20293). Firmware patches are being rolled out through OEM and IBV BIOS build pipelines.

CERT/CC Vulnerability NotesSep 8, 15:05 UTC · 8d agoVulnerability CVE-2026-20293 CVE-2026-33197 CVE-2026-6485

VU#943094: ONLYOFFICE ownCloud integration plugin contains a Server-Side Request Forgery (SSRF) vulnerability

ONLYOFFICE's ownCloud integration plugin 9.12 has an SSRF flaw (CVE-2026-84282) letting authenticated admins probe internal networks; no patch exists yet.

CERT/CC published VU#943094 for a server-side request forgery in Ascensio System SIA's ONLYOFFICE ownCloud integration plugin version 9.12, tracked as CVE-2026-84282. The /apps/onlyoffice/ajax/settings/address endpoint does not validate the user-supplied document server URL, so an authenticated administrator can make the ownCloud server send arbitrary requests to localhost and internal hosts. Differences in error responses (connection failures vs SSL/TLS errors) let attackers enumerate open and closed TCP ports for internal reconnaissance. The vendor could not be reached, so no official patch is available; CERT recommends disabling the plugin and applying egress filtering until a fix ships.

CERT/CC Vulnerability NotesSep 8, 14:23 UTC · 8d agoVulnerability CVE-2026-84282

CVE-2026-50522: Microsoft SharePoint Server RCE Vulnerability

CVE-2026-50522 is an unauthenticated .NET deserialization RCE in SharePoint Server Subscription, 2019, and 2016; Microsoft patched it July 14, 2026.

CVE-2026-50522 (CWE-502) lets unauthenticated attackers send crafted serialized .NET payloads to network-accessible SharePoint endpoints, triggering gadget-chain deserialization and remote code execution under the privileged SharePoint service account. It affects SharePoint Server Subscription Edition, SharePoint Server 2019, and SharePoint Server 2016 Enterprise; Microsoft published the advisory on July 14, 2026. The EPSS score is 20.346%, but no public PoC exists and the flaw is not in CISA's KEV catalog at publication. Mitigations include applying Microsoft updates, rotating SharePoint machine keys, enabling AMSI, and restricting internet exposure.

Web discovery (articles for new exploits & KEV entries)Sep 7, 19:42 UTC · 9d agoVulnerability 3 sources CVE-2026-505221

LG TV flaws could let attackers listen in, even in standby mode

Researchers found LG smart TVs collect network data and ACR viewing profiles, and demonstrated microphone audio capture plus undisclosed RCE vulnerabilities.

An investigation by Gamers Nexus with Level1Techs and independent researchers found LG TVs performing network discovery, collecting nearby Wi-Fi names and device identifiers, and conducting Automated Content Recognition (ACR) tracking. They demonstrated microphone audio capture even when the TV appeared off, and audio buffering while the TV was unplugged from the internet. Remote-code-execution vulnerabilities were reported to LG under ongoing responsible disclosure, with full details not yet public.

Malwarebytes LabsSep 7, 13:34 UTC · 9d agoVulnerability

ConnectWise warns of new ScreenConnect flaw without patch

ConnectWise warns of an unpatched ScreenConnect flaw affecting file transfer in support sessions and shares interim mitigations for MSPs.

ConnectWise disclosed a new ScreenConnect Remote Access vulnerability affecting file transfer behavior in both cloud and on-premises deployments; no CVE ID or patch is available yet, with a fix planned later this week. The vendor published temporary mitigation steps that remove TransferFiles permissions from session groups across all roles. Shadowserver tracks nearly 6,000 internet-exposed ScreenConnect instances. Previous ScreenConnect flaws, including CVE-2024-1709, were exploited by ransomware gangs and North Korea's Kimsuky, and three ScreenConnect vulnerabilities are on CISA's actively exploited catalog.

BleepingComputerSep 7, 10:06 UTC · 9d agoVulnerability CVE-2024-1709 CVE-2025-3935 CVE-2026-35641

Cisco Fixed Critical RCE in Nexus 9000 Series Switches

Cisco patched CVE-2026-20212 (CVSS 9.8) in Silicon One-based Nexus 9000 switches, allowing unauthenticated remote root code execution via TCP ports 43210/43211.

Cisco patched CVE-2026-20212 (CVSS 9.8), a flaw in the Silicon One integration for Nexus 9000 Series switches that lets unauthenticated remote attackers execute code with root privileges. TCP ports 43210 and 43211 are exposed through the default Layer 3 VRF, and exploitation can also crash the S1HAL process, forcing device reloads. Cisco TAC discovered the flaw during a support case; PSIRT is not aware of public disclosure or malicious exploitation. Workarounds include infrastructure ACLs or blocking the exposed ports, alongside a Live Protect shield pending fixed NX-OS upgrades.

Security AffairsSep 3, 19:49 UTC · 13d agoVulnerability CVE-2026-20212

Decade-old PostgreSQL flaw turns backup account into a backdoor

Cyera disclosed CVE-2026-6471, a decade-old PostgreSQL flaw letting REPLICATION-attribute accounts achieve RCE and superuser compromise, patched August 13.

Cyera Research's 'PostGREShell' flaw exists in PostgreSQL's logical replication output plugin loading, where the replication code path never called the library-path security check, allowing path traversal or UNC paths to load arbitrary code. A low-privilege backup account can achieve code execution on Windows, Linux, and macOS, then escalate to superuser with persistent backdoor access. CVE-2026-6471 affects versions back to PostgreSQL 9.4 (2014) and was patched in releases 18.6, 17.11, 16.15, 15.19, and 14.24 on August 13. CVSS is 7.2, and no exploitation of this specific CVE has been confirmed, though VirusTotal hunting found 114 malicious PostgreSQL plugins.

CSO OnlineSep 3, 11:38 UTC · 13d agoVulnerability CVE-2026-6471

Six Maximum

Cisco patched nine critical flaws, six rated CVSS 10.0, in Crosswork platforms and Secure Workload, none known to be exploited.

Cisco released fixes for nine critical vulnerabilities in its Crosswork platforms and Secure Workload software, discovered during an internal security review that used advanced AI models. Six flaws carry CVSS 10.0 ratings, including SQL injection CVE-2026-20030 and missing authentication CVE-2026-20357 in Crosswork, and access control CVE-2026-20315 and authentication flaws CVE-2026-20317 in Secure Workload. Fixes shipped in Crosswork 7.2.1-SP, Secure Workload 3.10.9.1, and 4.0.4.16. Cisco says no exploitation has been observed.

Security AffairsAug 21, 12:30 UTC · 26d agoVulnerability CVE-2026-20030 CVE-2026-20357 CVE-2026-20358+6 CVEs1