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Cisco security advisory (AV26-921)

Canadian Cyber Centre warns actively exploited Cisco Secure Email Gateway SQL injection CVE-2026-76461 was added to CISA's KEV database.

The Canadian Centre for Cyber Security advisory AV26-921 (September 14, 2026) covers a SQL injection vulnerability in Cisco Secure Email Gateway (AsyncOS) and Secure Email and Web Manager. Affected versions include AsyncOS/Secure Email Gateway prior to 15.5.5-014, 16.0.4-302, and 16.5.0-780, and Secure Email and Web Manager prior to 15.5.5-006 and 16.5.0-429. Cisco stated CVE-2026-76461 is being actively exploited, and CISA added it to the Known Exploited Vulnerabilities database the same day. Users and administrators are urged to apply updates as they become available.

Canadian Centre for Cyber Securityupdated · 2h agofirst · 1d agoAdvisory in the wild 15 sourcesCVE-2026-76461

Cisco Integrated Management Controller Argument Injection Vulnerabilities

Cisco patched multiple argument-injection vulnerabilities in Cisco IMC's web management interface allowing authenticated attackers root command execution.

Cisco published an advisory covering multiple argument injection vulnerabilities in the web-based management interface of Cisco Integrated Management Controller (IMC). An authenticated, remote attacker could exploit them to execute arbitrary commands on the underlying operating system and elevate privileges to root. Cisco released software updates and states there are no workarounds; the advisory carries a High Security Impact Rating.

Cisco Security Advisories · 2h agoAdvisory

IBM security advisory (AV26-922)

Canadian Cyber Centre relays IBM advisory for Langflow, MQ, and Sterling File Gateway flaws including MQ remote code execution (CVE-2026-13293).

Canadian Cyber Centre advisory AV26-922 relays IBM fixes for Langflow OSS (versions through 1.11.5 across release lines), IBM MQ (10.0.0.0 and 9.x LTS/CD through 9.4.5.1), and Sterling File Gateway (through 6.2.2.1). CVE-2026-13293 is a remote code execution flaw in IBM MQ Java messaging caused by an incomplete security scanner blocklist enabling network-based code execution. CVE-2026-19290 is an improper access control vulnerability in IBM Sterling File Gateway. Administrators are urged to review and apply the necessary updates.

Canadian Centre for Cyber Security · 8h agoAdvisoryCVE-2026-13293CVE-2026-19290

USN-8763-1: kitty vulnerabilities

Ubuntu patches three kitty terminal flaws including remote command execution via crafted escape sequences.

Ubuntu Security Notice USN-8763-1 fixes multiple vulnerabilities in the kitty terminal emulator. CVE-2026-42850 allows a remote attacker to execute arbitrary commands via improperly escaped error messages triggered by crafted terminal escape sequences. CVE-2026-42851 enables arbitrary code execution with the user's privileges through mishandled remote edit requests in terminal output. CVE-2026-54055 lets a local attacker overwrite arbitrary files via destination paths in kitty's file transmission protocol.

Ubuntu Security Notices · 9h agoAdvisoryCVE-2026-42850CVE-2026-42851CVE-2026-54055

Wärtsilä FOS-Onboard

CISA advisory: two hardcoded cryptographic key flaws in Wärtsilä FOS-Onboard 5.07.0923.01 (CVSS 9.0/9.1) could allow unauthorized updates, code execution, and credential theft.

CISA advisory ICSA-26-258-02 discloses CVE-2026-78225 (CVSS 3.1 9.0 critical), a hardcoded cryptographic server key in the deployer-ng Update Controller of Wärtsilä FOS-Onboard 5.07.0923.01. CVE-2026-81855 (CVSS 3.1 9.1 critical) is a hardcoded client authentication key in the robot testing framework component. Successful exploitation could let an attacker deliver unauthorized updates, execute code, or extract credentials to impersonate a privileged client. The product is deployed worldwide in transportation systems critical infrastructure; Cydome Security reported the flaws and CISA states no known public exploitation exists.

CISA Advisories · 11h agoAdvisoryCVE-2026-78225CVE-2026-81855

CareCam CM2507

CISA advisory: seven flaws in CareCam CM2507 IP cameras enable unauthenticated live video access, privileged ONVIF control, credential recovery, and code execution.

CISA advisory ICSA-26-258-08 discloses seven vulnerabilities in CareCam HMT.CM2507 IP cameras running firmware v251211.1507. Issues include missing authentication for network video streaming (CVE-2026-88259, CVSS 3.1 7.5), an empty password on a privileged ONVIF account (CVE-2026-84398), weak legacy hashing of the root password (CVE-2026-85497, CVSS 4.0 9.3 critical), and cleartext storage of Wi-Fi credentials (CVE-2026-81321). Physical-access flaws allow arbitrary code execution from scripts on removable media (CVE-2026-81305) and unauthenticated bootloader access (CVE-2026-85478). The cameras are deployed worldwide in commercial facilities.

CISA Advisories · 11h agoAdvisoryCVE-2026-88259CVE-2026-84398CVE-2026-84400+4 CVEs

Digital Watchdog VMAX DVR and NVR Product Lineups

CISA advisory details six flaws, aggregate CVSS 9.6, giving attackers full control of Digital Watchdog VMAX DVR/NVR surveillance devices.

CISA advisory ICSA-26-258-01 discloses six vulnerabilities affecting all versions of Digital Watchdog VMAX A1 G4 DVRs, VMAX IP G4 NVRs, VMAX A1 PLUS, VA1G4, and VG4 recorders, with aggregate CVSS v3 of 9.6. Flaws include an authentication bypass leaking plaintext admin credentials (CVE-2026-68953), hard-coded credentials enabling root FTP access (CVE-2026-66890, CVE-2026-68950), root command execution (CVE-2026-68070), missing authorization on state-changing CGIs (CVE-2026-66887), and predictable session tokens (CVE-2026-66372). Successful exploitation grants full administrative control, live and recorded surveillance access, and a network pivot point. Products are deployed worldwide across commercial facilities, government, healthcare, and transportation sectors.

CISA Advisories · 11h agoAdvisoryCVE-2026-68953CVE-2026-66890CVE-2026-68070+3 CVEs

mySCADA myPRO Manager

CISA advisory reveals unauthenticated privileged API access and arbitrary SMS sending in mySCADA myPRO Manager <=2.1, CVSS 9.8.

CISA advisory ICSA-26-258-03 discloses two vulnerabilities in mySCADA myPRO Manager <=2.1 with aggregate CVSS v3 of 9.8. CVE-2026-73807 (CVSS 9.8) lets unauthenticated network attackers access privileged management functions via the command API, while CVE-2026-82567 exposes an unauthenticated HTTP endpoint that sends arbitrary SMS messages through a connected GSM modem. Deployments span critical manufacturing, energy, food and agriculture, transportation, and water and wastewater sectors. CISA states no known public exploitation has been reported at this time.

CISA Advisories · 11h agoAdvisoryCVE-2026-73807CVE-2026-82567

Siemens Mendix SAML

Siemens Mendix SAML module fails signature validation, allowing unauthenticated account hijacking in specific SSO configurations (CVE-2026-80465).

CISA republished Siemens advisory SSA-887643 for CVE-2026-80465 (CVSS 8.7) in the Mendix SAML module, affecting Mendix 10/11-compatible versions before 4.2.3 and Mendix 9.24-compatible versions before 3.6.27. The module improperly validates SAML response signatures (CWE-347), letting unauthenticated remote attackers hijack an account in specific SSO configurations. Mendix has released fixed versions and recommends updating.

CISA Advisories · 11h agoAdvisoryCVE-2026-80465

Siemens Reyrolle 7SR5

CISA advisory covers 14 vulnerabilities, CVSS 9.8, in Siemens Reyrolle 7SR5 energy-sector protection relays before V2.70.

CISA advisory ICSA-26-258-05 covers 14 vulnerabilities in Siemens Reyrolle 7SR5 protection relays before V2.70, used in the energy sector worldwide, with aggregate CVSS v3 of 9.8. Flaws include Cesanta Mongoose web server issues (CVE-2024-42384 through CVE-2024-42392) and new bugs such as web-interface session-ID exposure enabling authentication bypass (CVE-2026-62645, CVSS 9.8), predictable session tokens (CVE-2026-62646, CVE-2026-62647), and pre-auth out-of-bounds writes (CVE-2026-62648). Siemens has released V2.70 and recommends updating to the latest version.

CISA Advisories · 11h agoAdvisoryCVE-2024-42384CVE-2024-42385CVE-2024-42386+11 CVEs

GitLab security advisory (AV26-917)

Canada's Cyber Centre warns GitLab versions before 19.1.8, 19.2.6 and 19.3.2 are affected; CISA added CVE-2026-85706 to KEV.

The Canadian Centre for Cyber Security issued advisory AV26-917 on September 11, 2026, warning that GitLab versions prior to 19.1.8, 19.2.6, and 19.3.2 are affected by vulnerabilities. CISA added CVE-2026-85706 to its Known Exploited Vulnerabilities catalog on the same date. The Cyber Centre urges users and administrators to review the advisory links and apply GitLab's critical patch release updates.

Canadian Centre for Cyber Securityupdated · 22h agofirst · 4d agoAdvisory in the wild 17 sourcesCVE-2026-85706

USN-8753-1: libinput vulnerability

Ubuntu patches libinput flaw letting local attackers inject udev properties and execute arbitrary code as root.

USN-8753-1 fixes a libinput vulnerability where device properties are not properly escaped. A local attacker could inject arbitrary udev properties and execute arbitrary code as root, a full local privilege escalation on affected Linux desktop systems. Ubuntu shipped updated packages.

Ubuntu Security Notices · 1d agoAdvisory

Adobe security advisory (AV26-808) – Update 1

Canada's Cyber Centre updated Adobe advisory AV26-808 to flag that CVE-2026-71362 in Adobe Commerce is being exploited in the wild.

The Canadian Centre for Cyber Security advisory AV26-808 (Update 1) lists vulnerabilities affecting Adobe products including Campaign Classic, Adobe Commerce, Magento Open Source, ColdFusion 2023/2025, Lightroom Classic, and Content Credentials SDKs. Update 1 notes that open-source reporting indicates CVE-2026-71362 is being exploited in the wild. Users and administrators are urged to review the referenced links and apply updates, including those in Adobe bulletin APSB26-92 for Adobe Commerce.

Canadian Centre for Cyber Securityupdated · 1d agofirst · 5d agoAdvisory in the wild 5 sourcesCVE-2026-71362

Check Point security advisory (AV26-902)

Canada's Cyber Centre issued advisory AV26-902 warning of two Check Point RCE flaws, including VPN authentication bypass CVE-2026-85102.

The Canadian Centre for Cyber Security released advisory AV26-902 on September 9, 2026, covering vulnerabilities in Check Point Security Gateway, Spark Firewall with Site-to-Site or Remote Access VPN, and Security Management Server across multiple versions. CVE-2026-85102 is an authentication bypass and remote code execution flaw in Remote Access and Site-to-Site VPN, while CVE-2026-85103 is an ASN.1 decoding heap overflow enabling remote code execution. Administrators are urged to review the linked advisories and apply updates as they become available.

Canadian Centre for Cyber Securityupdated · 1d agofirst · 6d agoAdvisory 9 sourcesCVE-2026-85102CVE-2026-85103

Cisco Secure Firewall Management Center Software Authentication Bypass Vulnerability

Cisco warns of a critical authentication bypass in Secure Firewall Management Center that lets unauthenticated attackers execute scripts and obtain root access.

A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software allows an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system. The flaw stems from an improper system process created at boot time and is triggered via crafted HTTP requests. If the FMC management interface does not have public internet access, the attack surface is limited.

Cisco Security Advisoriesupdated · 1d agofirst · 6d agoAdvisory 13 sourcesCVE-2026-20079

ConnectWise security advisory (AV26-903)

ConnectWise patches ScreenConnect CVE-2026-84869, reported exploited in the wild; administrators should update to 26.6.5.

ConnectWise shipped ScreenConnect 26.6.5 to fix a vulnerability tracked as CVE-2026-84869 affecting versions prior to 26.6.5. Open-source reporting indicates the flaw is being exploited in the wild. The Canadian Centre for Cyber Security issued advisory AV26-903 urging users and administrators to apply the patch.

Canadian Centre for Cyber Securityupdated · 1d agofirst · 6d agoAdvisory in the wild 3 sourcesCVE-2026-84869

ZDI-26-684: Linux Kernel KSMBD Query Directory Request Race Condition Remote Code Execution Vulnerability

ZDI discloses CVE-2026-64397, a CVSS 9.0 unauthenticated remote code execution race condition in Linux Kernel KSMBD.

ZDI-26-684 describes a race condition in the Linux Kernel KSMBD subsystem's Query Directory Request handling that allows unauthenticated remote attackers to execute arbitrary code. Only systems with KSMBD enabled are vulnerable. ZDI assigned a CVSS rating of 9.0 and CVE-2026-64397.

ZDI Published Advisories · 1d agoAdvisoryCVE-2026-64397

Chinese AI firms are siphoning capabilities from American models, CISA warns

CISA, NSA and FBI warn Chinese AI firms including DeepSeek and Moonshot AI extracted billions of tokens from US frontier models via distillation campaigns.

A joint CISA, NSA and FBI advisory says China-based firms including DeepSeek, Moonshot AI, Alibaba, MiniMax, StepFun and Z.AI have run industrial-scale knowledge distillation campaigns against US frontier models such as Claude, GPT, Gemini and Grok since at least late 2024, likely with Chinese government knowledge. The campaigns used gray-market API proxies called transfer stations, premium account pools and traffic routing to bypass restrictions, evade safeguards and exfiltrate billions of tokens used to train models like DeepSeek R1/V3 and Kimi. The agencies challenge DeepSeek's reported $5.6 million training cost and recommend identity verification, usage monitoring, response variation, differential privacy and indicator sharing as defenses.

Help Net Securityupdated · 4d agofirst · 6d agoAdvisory in the wild 13 sources1

ST Engineering iDirect iQ-Series Terminals (Update A)

CISA advisory details four flaws in ST Engineering iDirect iQ-Series VSAT terminals <=4.5.2.1, enabling device data theft, CSRF-driven reboots, and local privilege escalation.

CISA's Update A to ICSA-26-183-01 covers ST Engineering iDirect iQ-Series, 3315-Series and 9-Series terminals at firmware <=4.5.2.1, deployed across communications, defense, energy and transportation. CVE-2026-38059 exposes unauthenticated /api/identity and /api/ endpoints leaking serial number, DID, TPK, MAC address and firmware version, potentially enabling terminal impersonation; CVE-2026-38057 is a CSRF flaw letting an attacker force terminal reboots and satellite link loss via /api/reboot. CVE-2026-38056 enables local privilege escalation using the factory-configured technician account (CVSS 3.1 8.8, CVSS 4.0 9.4), and CVE-2026-38058 exposes crackable MD5-crypt root password hashes. All four flaws were reported to CISA by Ahmed Alqahtani of Aramco.

CISA Advisories · 5d agoAdvisoryCVE-2026-38059CVE-2026-38057CVE-2026-38056+1 CVEs

Google security advisory (AV26-904)

Google patches Chrome CVE-2026-87491, exploited in the wild and added to CISA's KEV; users should update to 153.0.8010.37.

Google released a stable channel desktop update fixing vulnerabilities in Chrome prior to 153.0.8010.37. Google confirmed that an exploit for CVE-2026-87491 exists in the wild, and CISA added the flaw to its Known Exploited Vulnerabilities catalog on September 9, 2026. The Canadian Centre for Cyber Security issued advisory AV26-904 urging users and administrators to apply the update.

Canadian Centre for Cyber Securityupdated · 5d agofirst · 6d agoAdvisory in the wild 2 sourcesCVE-2026-87491

ZDI-26-632: WatchGuard FireWare OS epm connect Stack-based Buffer Overflow Remote Code Execution Vulnerability

ZDI disclosed a CVSS 8.8 unauthenticated stack-based buffer overflow in WatchGuard FireWare OS epm connect enabling network-adjacent remote code execution.

ZDI published advisory ZDI-26-632 for a stack-based buffer overflow in the epm connect component of WatchGuard FireWare OS. Network-adjacent attackers can execute arbitrary code without authentication. ZDI assigned CVSS 8.8 and the issue is tracked as CVE-2026-13086.

ZDI Published Advisoriesupdated · 5d agofirst · 6d agoAdvisory 2 sourcesCVE-2026-13086

USN-8741-1: Flatpak vulnerabilities

Ubuntu patched two Flatpak flaws, including a sandbox escape via app-controlled symlinks allowing host code execution (CVE-2026-34078).

Ubuntu security notice USN-8741-1 fixes two Flatpak vulnerabilities in Ubuntu 20.04 LTS, 22.04 LTS, and 24.04 LTS. CVE-2026-34078 stems from improper path validation in sandbox-expose options, letting a malicious or compromised Flatpak app use app-controlled symlinks to access arbitrary host files and gain code execution in the host context. CVE-2026-34079 involves improper path validation when removing outdated ld.so cache files, allowing a compromised app to delete arbitrary files on the host.

Ubuntu Security Notices · 5d agoAdvisoryCVE-2026-34078CVE-2026-34079

ZDI-26-656: PAPPL Job Processing Heap-based Buffer Overflow Remote Code Execution Vulnerability

ZDI-26-656: Unauthenticated heap-based buffer overflow in PAPPL job processing allows remote code execution, rated CVSS 9.8.

The Zero Day Initiative published advisory ZDI-26-656 for PAPPL, the open-source printer application framework. A heap-based buffer overflow in job processing allows remote attackers to execute arbitrary code with no authentication required. ZDI assigned a CVSS 9.8 rating. No CVE identifier was listed in the advisory text.

ZDI Published Advisories · 5d agoAdvisory 2 sources

ZDI-26-657: ASUS Control Center Express Agent Missing Authentication Remote Code Execution Vulnerability

ZDI-26-657: ASUS Control Center Express Agent has an unauthenticated remote code execution flaw, CVE-2026-19397, rated CVSS 9.8.

The Zero Day Initiative published advisory ZDI-26-657 for ASUS Control Center Express Agent. The flaw, tracked as CVE-2026-19397, lets remote attackers execute arbitrary code without authentication. ZDI assigned a CVSS 9.8 rating. The advisory accompanies a vendor patch for affected installations.

ZDI Published Advisories · 5d agoAdvisoryCVE-2026-19397

Android’s September 2026 Updates Patch 180 Vulnerabilities

Google's September 2026 Android security updates patch 180 vulnerabilities including critical Wi-Fi memory corruption flaw CVE-2026-28662.

Google released September 2026 Android security updates addressing 180 vulnerabilities across two patch levels. The 2026-09-01 level fixes 95 bugs including 23 critical System component flaws enabling RCE, EoP, and DoS. The 2026-09-05 level addresses 85 additional defects in kernel and vendor components including a Wi-Fi memory corruption flaw (CVE-2026-28662) enabling remote code execution without privileges or user interaction.

SecurityWeek · 6d agoAdvisoryCVE-2026-28662

Android Security Update September 2026 – Fix for Critical Flaws that Enable RCE Attacks

Google's September 2026 Android bulletin fixes over 30 critical flaws, including no-interaction system RCEs, a TIPC kernel RCE and a Qualcomm closed-source bug

Google's Android Security Bulletin for September 2026 (patch levels 2026-09-01 and 2026-09-05) fixes numerous critical System remote code execution flaws, including CVE-2026-28604, CVE-2026-28618, CVE-2026-28639, CVE-2026-28662, CVE-2026-49882, CVE-2026-49884, CVE-2026-49919 and CVE-2026-49921, none requiring user interaction or additional privileges. It also addresses critical kernel issues including a TIPC RCE (CVE-2026-52993) and elevation-of-privilege flaws in NFC and protected KVM, plus a critical Qualcomm closed-source component flaw (CVE-2026-25289). Affected versions span Android 14 through 17; the 2026-09-05 patch level extends coverage to Android TV and chipset components, with high-severity fixes for Arm Mali, PowerVR, MediaTek, Unisoc and Qualcomm components.

Cyber Security News · 6d agoAdvisoryCVE-2026-28666CVE-2026-55273CVE-2026-49932+27 CVEs

September 2026 Patch Tuesday: Record patch count, 2 zero-days, and a SigRed successor

Microsoft's September 2026 Patch Tuesday delivers a record patch count, fixing two exploited zero-days and a wormable DNS flaw dubbed a SigRed successor.

Microsoft's September 2026 Patch Tuesday sets another record patch count, fixing two vulnerabilities exploited as zero-days: CVE-2026-81963, a Windows Update Stack low-privilege-to-SYSTEM escalation reported by MSTIC, and CVE-2026-85880, a Windows Advanced Local Procedure Call escalation reported by Proofpoint. Zero Day Initiative's Dustin Childs urges priority on a cluster of 20 potentially wormable bugs including DNS RCE CVE-2026-69730, described as a spiritual successor to SigRed, plus Kerberos authentication bypass CVE-2026-69676 that could give any authenticated domain user RCE on domain controllers, and Exchange RCE CVE-2026-55007 via a malicious Visio attachment. All Windows fixes are bundled in cumulative updates, and experts stress prioritizing exploitable, reachable flaws over raw patch counts.

Help Net Security · 6d agoAdvisory in the wildCVE-2026-81963CVE-2026-85880CVE-2026-69730+4 CVEs

Microsoft September 2026 Patch Tuesday Fixes 973 Vulnerabilities and 2 Exploited Zero-Days

Microsoft's September 2026 Patch Tuesday fixes 973 vulnerabilities, including two zero-days already exploited in the wild.

Microsoft's September 2026 Patch Tuesday addresses 973 vulnerabilities across Windows, Office, and Azure components, including two zero-days already exploited in the wild. CVE-2026-81963, an elevation of privilege flaw in the Windows Update Stack, is flagged as an exploited zero-day. The release includes numerous remote code execution and information disclosure fixes for Microsoft Excel and Word, plus patches for the Windows kernel, ALPC, Print Spooler, ReFS, Entra ID, and Azure CLI.

GBHackers · 6d agoAdvisory in the wildCVE-2026-85880CVE-2026-85877CVE-2026-85875+27 CVEs

ZDI-26-634: Flowise CSV Agent Prompt Injection Remote Code Execution Vulnerability

ZDI disclosed a CVSS 9.8 unauthenticated prompt injection vulnerability in Flowise's CSV agent that allows remote arbitrary code execution.

ZDI published advisory ZDI-26-634 for a prompt injection vulnerability in Flowise's CSV agent component. Remote, unauthenticated attackers can inject prompts to execute arbitrary code on affected installations. ZDI assigned CVSS 9.8 and the issue is tracked as CVE-2026-70477.

ZDI Published Advisories · 6d agoAdvisoryCVE-2026-70477

Microsoft Patch Tuesday for September 2026 — Snort rules and prominent vulnerabilities

Microsoft's September 2026 Patch Tuesday fixes 973 vulnerabilities, including 113 critical, with two Windows privilege-escalation bugs (CVE-2026-81963, CVE-2026-85880) exploited in the wild.

Microsoft's September 2026 security update addresses 973 vulnerabilities across its product lineup, 113 rated critical, of which 82 are remote code execution flaws. Two vulnerabilities are confirmed exploited in the wild: CVE-2026-81963, an elevation-of-privilege flaw in the Windows Update Stack (CVSS 7.8), and CVE-2026-85880, a heap-based buffer overflow in Windows Advanced Local Procedure Call (CVSS 7.8). Microsoft flags several bugs as more likely to be exploited, including a 9.8 RCE in Windows DNS Server (CVE-2026-69730), an 8.8 RCE in Windows Kerberos (CVE-2026-69676), and a 9.0 EoP in Spring Cloud Azure (CVE-2026-69854). Cisco Talos published accompanying Snort rules to detect exploitation attempts against the prominent flaws.

Cisco Talos · 7d agoAdvisory in the wildCVE-2026-81963CVE-2026-85880CVE-2026-69676+27 CVEs

Microsoft security advisory – September 2026 monthly rollup (AV26-896) – Update 1

Canada's Cyber Centre relays Microsoft's September 2026 rollup; CISA added exploited zero-days CVE-2026-85880 and CVE-2026-81963 to KEV.

Advisory AV26-896 from the Canadian Centre for Cyber Security summarizes Microsoft's September 2026 monthly security rollup, listing affected products across Windows, Office, .NET, Azure, Exchange and SQL Server. It notes Microsoft confirmed CVE-2026-81963 and CVE-2026-85880 have been exploited. On September 8, 2026, CISA added both CVEs to its Known Exploited Vulnerabilities catalog, and administrators are urged to apply the updates.

Canadian Centre for Cyber Security · 7d agoAdvisory in the wildCVE-2026-81963CVE-2026-858801

The September 2026 Security Update Review

ZDI's September 2026 Microsoft update review lists two already-exploited Windows EoP zero-days and dozens of critical RCEs across Office, SQL Server, and Windows services.

The review catalogs Microsoft's September 2026 fixes, marking CVE-2026-85880 (Windows ALPC) and CVE-2026-81963 (Windows Update Stack) as already exploited elevation-of-privilege issues. It also lists critical RCE flaws in Office, Word, Excel, PowerPoint, Outlook, SQL Server, Windows DNS, DHCP and Failover Cluster, plus graphics component RCEs. Azure-side fixes include Entra ID, Copilot Studio, Azure AI Language and Azure AD B2C elevation-of-privilege flaws.

Zero Day Initiative Blog · 7d agoAdvisory in the wildCVE-2026-85880CVE-2026-81963CVE-2026-70352+27 CVEs1

Microsoft September 2026 Patch Tuesday fixes 966 flaws, 2 zero-days

Microsoft's September 2026 Patch Tuesday fixes a record 966 flaws, including two Windows zero-days actively exploited to gain SYSTEM privileges.

Microsoft's September 2026 Patch Tuesday addresses a record 966 vulnerabilities, including 105 rated Critical, 81 of them remote code execution bugs. Two zero-days were actively exploited: a Windows Update Stack link-following flaw and a Windows ALPC heap-based buffer overflow, both allowing local elevation to SYSTEM privileges. The ALPC flaw was reported by Volexity and Proofpoint researchers, while the Update Stack flaw was credited to Romain Deperne and the Microsoft Threat Intelligence Centre. Microsoft shared no details on how the flaws were exploited in attacks.

BleepingComputer · 7d agoAdvisory in the wildCVE-2026-69805CVE-2026-58649CVE-2026-69806+27 CVEs1

CISA tells operators to harden Siemens S7 PLCs. Here’s how to do it without disrupting production

CISA, NSA, FBI and other agencies warn of active targeting of internet-exposed Siemens S7 PLCs and urge patching, exposure removal and hardening.

Joint advisory AA26-231A from the NSA, CISA, FBI, Department of Energy and EPA warns that actors are actively targeting Siemens S7 PLCs using internet scanning, AI-assisted scripts and libraries such as Snap7 and python-snap7 over S7comm on TCP port 102. The advisory covers S7-200 through S7-1500 series controllers and recommends patching, removing internet exposure, access controls, monitoring and disabling unneeded services. Siemens states no new S7 vulnerabilities are involved, only misconfigurations addressed in existing ProductCERT guidance SSB-104599. The article details how to apply each measure without breaking production dependencies such as remote I/O, HMI links and diagnostics.

CSO Online · 7d agoAdvisory in the wild

Adobe security advisory (AV26-888)

Canada's Cyber Centre warns CVE-2026-75650 in Adobe Commerce and Magento Open Source is exploited in the wild; hotfixes and updates are available.

Canadian Centre for Cyber Security advisory AV26-888 (September 8, 2026) covers CVE-2026-75650 in Adobe Commerce, Adobe Commerce B2B and Magento Open Source. Adobe states the vulnerability is being exploited in the wild. Affected versions extend through the August 2026 patch levels across the 2.4.4-2.4.9 branches, with B2B versions 1.3.x-1.5.x also affected. Administrators are urged to apply the available hotfixes and updates.

Canadian Centre for Cyber Security · 7d agoAdvisory in the wild 2 sourcesCVE-2026-75650CVE-2026-7565

Mikrotik security advisory (AV26-887)

Canada's Cyber Centre urges MikroTik RouterOS updates as CVE-2026-67276, CVE-2026-67277 and CVE-2026-86060 are reported exploited in the wild.

Canadian Centre for Cyber Security advisory AV26-887 covers MikroTik RouterOS vulnerabilities affecting versions prior to 6.49.21, 7.23.4, 7.24.2 and 7.25 beta 3. Open-source reporting indicates CVE-2026-67276, CVE-2026-67277 and CVE-2026-86060 are being exploited in the wild. The Cyber Centre urges users and administrators to review the vendor advisories and apply the necessary updates.

Canadian Centre for Cyber Security · 7d agoAdvisory in the wildCVE-2026-67276CVE-2026-67277CVE-2026-86060

N-able security advisory (AV26-885)

N-able says CVE-2026-86218 in N-central is exploited in the wild; MSPs must apply hotfix 2026.3.1.14 (2026.3 HF4).

Canadian Centre for Cyber Security advisory AV26-885 covers CVE-2026-86218 in N-able N-central, which the vendor confirms is being exploited in the wild. Versions prior to 2026.3.1.14 are affected, and the fix ships as N-central 2026.3 Hotfix 4. The Cyber Centre urges users and administrators to apply the update promptly.

Canadian Centre for Cyber Security · 7d agoAdvisory in the wildCVE-2026-86218

JWT used for authentication in web GUI signed with static key

Fortinet warns that FortiMonitorOnSight's web GUI uses JWTs signed with a static key, enabling remote unauthenticated authentication bypass.

Fortinet advisory FG-IR-26-170 discloses a CVSS 9.6 vulnerability (CWE-540, sensitive information in source code) in the FortiMonitorOnSight web portal. The web GUI's JWT authentication tokens are signed with a static key, allowing a remote unauthenticated attacker to bypass authentication via forged or reused JWTs. The advisory was revised on September 8, 2026.

Fortinet PSIRT · 7d agoAdvisory

Improper Authentication of FortiPAM Server

Fortinet discloses CVSS 9.1 improper authentication in FortiPAM's Chrome extension allowing unauthenticated attackers to proxy victims' browser traffic.

Fortinet advisory FG-IR-26-168 describes an improper authentication vulnerability (CWE-287) rated 9.1 in the Fortinet Privileged Access Agent Chrome Extension. A remote unauthenticated attacker could proxy a user's browser traffic through attacker-controlled servers if the user visits a malicious website. The advisory was revised on September 8, 2026.

Fortinet PSIRT · 7d agoAdvisory

Unauthenticated Control of NAT Rules Leading to Exposure of Sensitive Information

Fortinet fixed an improper access control flaw (CVSS 8.9) in FortiSandbox, FortiSandbox Cloud, and FortiSandbox PaaS letting unauthenticated attackers access sensitive information.

Fortinet advisory FG-IR-26-166 discloses an improper access control vulnerability (CWE-284) in the FortiSandbox, FortiSandbox Cloud, and FortiSandbox PaaS web UI, rated CVSSv3 8.9. The advisory title indicates unauthenticated control of NAT rules leading to exposure of sensitive information. An unauthenticated attacker can access sensitive data via crafted HTTP requests. The advisory was revised on 2026-09-08.

Fortinet PSIRT · 7d agoAdvisory