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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 · 8d agoAdvisory in the wildCVE-2026-85880CVE-2026-85877CVE-2026-85875+27 CVEs1

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 · 1d agoAdvisory1

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 Advisories · 7d agoAdvisory 2 sourcesCVE-2026-20079

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 · 1d agoAdvisoryCVE-2026-73807CVE-2026-82567

Cisco Identity Services Engine Authentication Bypass Vulnerability

Cisco patched an unauthenticated API authentication bypass in Identity Services Engine allowing attackers to access the web-based management interface.

A vulnerability in an API of Cisco Identity Services Engine (ISE) stems from insufficient authentication control on an API endpoint. An unauthenticated remote attacker can send a crafted request to bypass authentication and gain unauthorized access to the device via the web-based management interface. Cisco has released software updates and no workarounds are available.

Cisco Security Advisoriesupdated · 27m agofirst · 19h agoAdvisory 21 sources

Cisco Secure Firewall Adaptive Security Appliance, Secure Firewall Threat Defense, and Secure Firewall Management Center Software Hardening Release: September 2026

Cisco's September 2026 firewall hardening release fixes internally found ASA, FTD, and FMC flaws, two of which are actively exploited.

Cisco released September 2026 hardening updates for Secure Firewall ASA, FTD, and FMC software addressing multiple vulnerabilities discovered during a comprehensive internal security review. Two of the vulnerabilities are known to be actively exploited, including a Cisco Secure Firewall Management Center static credential vulnerability. Details are provided in separate linked advisories.

Cisco Security Advisories · 19h agoAdvisory in the wild 6 sources

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 · 7d agoAdvisoryCVE-2026-28666CVE-2026-55273CVE-2026-49932+27 CVEs

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 · 21h agofirst · 2d agoAdvisory in the wild 17 sourcesCVE-2026-76461

Schneider Electric Easergy, EcoStruxture, PowerLogic, and Saitel Products (Update A)

CISA updated ICSA-26-169-07: CVE-2026-4827 (CVSS 8.3) insufficient entropy enables session hijacking across dozens of Schneider Electric grid products; fixes available.

CISA republished advisory ICSA-26-169-07 (Update A) for CVE-2026-4827, CWE-331 insufficient entropy in session management, scored CVSS 8.3. Affected lines include Easergy MiCOM relays and C5, EcoStruxure Power Automation (EPAS-GTW, EPAS-UI, iPMFLS), EcoStruxure Power Operation, PowerLogic P5/P7/T300/T500, and Saitel DP/T150 RTUs, with dozens of fixed versions listed. Successful exploitation could enable session hijacking and unauthorized operations on systems in energy, chemical, critical manufacturing, and water sectors. Fixes are available; no exploitation is reported.

CISA Advisories · 13d agoAdvisoryCVE-2026-4827

AL26-019 - Vulnerabilities impacting Citrix NetScaler ADC and NetScaler Gateway - CVE-2026-19490 and CVE-2026-19489

Canadian Cyber Centre alerts on Citrix NetScaler ADC/Gateway flaws CVE-2026-19490 (authentication bypass) and CVE-2026-19489 (buffer overflow), urging emergency patching.

The Canadian Centre for Cyber Security issued alert AL26-019 covering two Citrix NetScaler vulnerabilities disclosed in a vendor advisory on August 19, 2026. CVE-2026-19490 (CWE-288) allows a remote unauthenticated attacker to bypass authentication on appliances configured as a Gateway for SSL VPN, ICA Proxy, CVPN, RDP Proxy, or as an AAA virtual server. CVE-2026-19489 (CWE-120) is a classic buffer overflow that may cause memory overflow, unpredictable behavior, or denial-of-service conditions. Affected appliances are vulnerable when configured as a SAML IdP; fixed versions include 14.1-73.32, 13.1-63.21, and 13.1-37.277 for FIPS.

Canadian Centre for Cyber Security · 12d agoAdvisory 3 sourcesCVE-2026-19490CVE-2026-19489

Oracle Critical Security Update – 673 Vulnerabilities Patched Across Product Families

Oracle's September 2026 Critical Patch Update ships 673 patches across 17 product families, including 100+ critical and 240+ remotely exploitable flaws.

Oracle's September 2026 Critical Security Patch Update ships 673 patches covering 672 unique CVEs, with more than 130 additional CVEs resolved through bundled fixes, pushing the effective total past 800. Over 100 flaws are critical severity and more than 240 are remotely exploitable without authentication. Oracle E-Business Suite received 159 fixes, Fusion Middleware 153 (78 unauthenticated and network-exploitable), and Hyperion 102. No in-the-wild exploitation of these specific flaws is reported, but Oracle cites CISA's earlier 72-hour remediation order for actively exploited CVE-2026-21962 (CVSS 10.0).

Cyber Security Newsupdated · 16h agofirst · 22h agoAdvisory 3 sourcesCVE-2026-219621

7th September – Threat Intelligence Report

Check Point weekly bulletin: exploited SonicWall SMA 1000 zero-days (CVE-2026-83548/49), JFrog Artifactory auth bypass, and a 2.8M-patient Baylor Genetics breach.

Check Point's weekly bulletin covers breaches including Thomson Reuters' C-Track platform (court records across 11 US states and Canada), Baylor Genetics (2.8M patients and employees, SSNs included), Hit casinos in Slovenia, and Dropbox (~5,000 accounts via abused Lenovo email verification). SonicWall patched two exploited SMA 1000 zero-days, including CVE-2026-83548, a CVSS 10.0 pre-authentication SSRF, while JFrog fixed exploited authentication bypass CVE-2026-82329 (CVSS 9.8). Malware and actor coverage includes Gambling Goblin, JSCeal, Mirage Kitten's NodeRabbit/PollCat campaign, and DPRK Contagious Interview macOS activity, plus a FalconFlank privilege-escalation PoC against CrowdStrike Falcon.

Check Point Research · 9d agoAdvisory in the wildCVE-2026-83548CVE-2026-83549CVE-2026-823291

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 Security · 7d agoAdvisoryCVE-2026-85102CVE-2026-85103

Apple Releases iOS 27 Security Update to Fix Over 120 Vulnerabilities

Apple released iOS 27 and iPadOS 27 patching roughly 126 vulnerabilities across kernel, WebKit, sandboxing, and authentication components; no active exploitation reported.

Apple released iOS 27 and iPadOS 27 on September 14, 2026, fixing approximately 126 vulnerabilities across more than 90 components, including the kernel, WebKit, AppleKeyStore, Sandbox, and TCC. Flaws include memory corruption, information disclosure, denial-of-service, logic errors, sandbox escapes enabling root privileges, and a Bluetooth issue permitting remote code execution in specific circumstances. Apple also shipped iOS 26.7 and iPadOS 26.7 with over 80 fixes for users delaying the major upgrade, including 75 vulnerabilities shared with iOS 27. No vulnerabilities were reported as actively exploited at release time.

GBHackers · 1d agoAdvisory

Oracle Critical Security Patch Update, September 2026 Review

Oracle's September 2026 Critical Patch Update fixes 673 vulnerabilities, including 104 critical, with many remotely exploitable in E-Business Suite and Fusion Middleware.

Oracle released 673 security patches in its September 2026 Critical Patch Update: 104 rated critical, 503 high, and 59 medium. Oracle E-Business Suite received the most patches (159, 24% of total), with 19 exploitable without credentials including CVE-2026-83327, CVE-2026-83452, and CVE-2026-83462 at CVSS 9.8. Fusion Middleware received 153 patches with 78 remotely exploitable without authentication, and 41 patches address third-party open-source component flaws. Qualys published detection QIDs for vulnerable assets.

Qualys ThreatPROTECT · 21h agoAdvisoryCVE-2026-83154CVE-2026-83196CVE-2026-83197+10 CVEs

Tycon Systems TPDIN-Monitor-WEB2 (Update A)

CISA details CVE-2026-61884 (CVSS 9.8) in Tycon Systems TPDIN-Monitor-WEB2: unauthenticated access to power relays when credentials are unset; fixed in 2.4.5.

CISA updated its advisory for Tycon Systems TPDIN-Monitor-WEB2 firmware below 2.4.5, covering two vulnerabilities. CVE-2026-61884 (CVSS 9.8, CWE-306) lets any network attacker reach full device controls, including power relay management and reboots, on units left without configured HTTP credentials. CVE-2026-55985 exposes stored system credentials in cleartext to authenticated dashboard users, enabling compromise of other local systems. No public exploitation has been reported to CISA.

CISA Advisories · 13d agoAdvisory 2 sourcesCVE-2026-61884CVE-2026-55985

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 · 8d agoAdvisory in the wildCVE-2026-81963CVE-2026-85880CVE-2026-69730+4 CVEs

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 · 7d agoAdvisoryCVE-2026-28662

AI-fueled attacks pose ‘active threat’ to water, other sectors, U.S. agencies warn

NSA, CISA, FBI, DOE and EPA warn hackers are using AI-generated scripts to actively attack Siemens S7 PLCs across critical-infrastructure sectors.

A joint cybersecurity advisory from the NSA, CISA, FBI, Department of Energy and EPA warns of an active threat campaign targeting water, food, energy, chemical, manufacturing and commercial facilities via Siemens S7 Series programmable logic controllers. The actors use internet scanning to find exposed or poorly protected PLCs, then deploy AI-generated exploitation scripts disguised as legitimate monitoring tools, an OT first that dramatically lowers the expertise required for ICS attacks. Siemens says no new S7 vulnerabilities are involved, only exploitation of misconfigurations, and it is coordinating with CISA's ProductCERT. The warning follows a joint FBI-EPA advisory confirming attacks at water and wastewater utilities in at least 12 states since July 27.

CyberScoop · 27d agoAdvisory in the wild1

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 · 8d agoAdvisory in the wildCVE-2026-81963CVE-2026-858802

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 · 1d agoAdvisoryCVE-2026-88259CVE-2026-84398CVE-2026-84400+4 CVEs

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 · 1d agoAdvisoryCVE-2024-42384CVE-2024-42385CVE-2024-42386+11 CVEs

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 · 8d agoAdvisory in the wild