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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.
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CISA Adds Six Exploited Flaws to KEV, Including NetScaler, Linux, and SQL Server Bugs
CISA added six actively exploited flaws to KEV, led by Citrix NetScaler CVE-2026-8452, with federal patch deadlines set.
CISA added six flaws to the KEV catalog on August 27, 2026, citing evidence of active exploitation, led by CVE-2026-8452, an improper buffer restriction in Citrix NetScaler ADC and Gateway that can cause denial-of-service. Defused Cyber and Previdian reported active exploitation of CVE-2026-8452, with 36 attempts over 12 days from 12 attacker IPs deploying web shells x.php and z.php. The other additions cover SQL Server RCE (CVE-2019-1068), Linux kernel out-of-bounds write (CVE-2022-0995), Red Hat ABRT and libuser privilege escalations (CVE-2015-5287, CVE-2015-3246), and AjaxPro deserialization RCE (CVE-2021-23758). FCEB agencies must patch CVE-2019-1068 and CVE-2026-8452 by August 29, 2026, and the rest by September 9, 2026.
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Unauthenticated RCE Flaws Could Expose 200,000+ WordPress Sites to Takeover
Two unauthenticated CVSS 9.8 code-injection and PHP object injection flaws in The Events Calendar plugin expose 200,000+ WordPress sites to RCE and takeover.
Defiant identified two critical vulnerabilities in The Events Calendar WordPress plugin, which has over 600,000 active installations. CVE-2026-78159, unauthenticated code injection during single-event HTML processing, was patched in version 6.17.3.1 on August 25; CVE-2026-78006, unauthenticated PHP object injection via event comments, was patched in 6.17.4.1 on September 10. Both independent chains lead to remote code execution and full site compromise. Roughly 240,000 sites run versions vulnerable to both flaws, and about 300,000 downloads between September 10 and 14 suggest half of installations may still lack the second fix.
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Oracle Patches 800+ Vulnerabilities in September 2026 Security Update
Oracle's September 2026 Critical Patch Update fixes 800+ vulnerabilities, including over 100 critical flaws and 240+ remotely exploitable without authentication.
Oracle released 673 new security patches in its September 2026 Critical Security Patch Update, resolving 672 unique CVEs across 17 risk matrices plus 130+ additional CVEs. More than 100 flaws are critical severity and over 240 are remotely exploitable without authentication. Oracle E-Business Suite received the largest batch with 159 patches, followed by Fusion Middleware (153, including 78 unauthenticated remote flaws) and Hyperion (102). Oracle reports no exploitation of these specific flaws but warns attackers routinely exploit unpatched Oracle products.
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Critical Dell ObjectScale Vulnerabilities Allows Malicious Users to Compromise the Affected system
Dell's DSA-2026-393 fixes ObjectScale/ECS flaws including unauthenticated deserialization RCE CVE-2026-70416 rated CVSS 10.0.
Dell advisory DSA-2026-393 (September 10, 2026) covers multiple flaws in ObjectScale and Elastic Cloud Storage (ECS). CVE-2026-70416 is a critical untrusted-data deserialization RCE (CVSS 10.0) in ObjectScale before 4.4.0.0 allowing unauthenticated remote code execution and full environment takeover, credited to researcher WinD39 (Huynh Dinh Vu). Additional issues include CVE-2025-43936 improper authentication (8.1), CVE-2026-26947 privilege management (6.7), CVE-2026-36591-style weak crypto CVE-2025-36591 (4.4), CVE-2026-76104 permission assignment DoS (5.5), plus third-party CVEs in Apache Log4j, liblzma, and the Linux kernel. Dell advises upgrading to version 4.4.0.0 or later (or 4.2.0.1) and restricting management interfaces until patched.
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ICS Patch Tuesday: Schneider Electric, Siemens Fix Critical Flaws
September ICS Patch Tuesday brings critical fixes from Schneider Electric, Siemens, and Aveva, including CVSS 9.2 authentication flaw CVE-2026-3869 in Modicon M580 controllers.
Schneider Electric's September advisories include a critical authentication vulnerability, CVE-2026-3869 with a CVSS score of 9.2, in Modicon M580 and Modicon M580 Safety controllers, plus high-severity bugs in PowerLogic T300 and EcoStruxure IT Data Center Expert. Siemens published nine new advisories, four rated critical across Reyrolle 7SR5, Open Interface Services, Industrial Edge Management, and SIMOVE Fleetmanager and SIPLANT, and began rolling out fixes for CVE-2026-31431, a 7.8-rated Linux kernel flaw enabling root shell access. Aveva disclosed four flaws in Pipeline Integrity Monitor's PIMBoards, including a hardcoded encryption key and MD5-hashed passwords, plus an unsafe deserialization issue in Enterprise SCADA. Rockwell Automation separately issued nine advisories covering RSLinx Classic and multiple controller products.
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Previously patched Citrix NetScaler flaw exploited in the wild (CVE-2026-8452)
Actively exploited Citrix NetScaler flaw CVE-2026-8452, patched in June, now added to CISA KEV; attackers deploy web shells and run discovery commands.
CISA added CVE-2026-8452, a memory overflow vulnerability in Citrix NetScaler ADC/Gateway, to its Known Exploited Vulnerabilities catalog on August 26, 2026, giving federal agencies until August 29 to remediate. Citrix disclosed and patched the flaw on June 30, 2026 in versions 14.1-72.61, 13.1-63.18, and 13.1-37.272. watchTowr Labs found the flaw can be chained into unauthenticated remote code execution and released a PoC on August 14. Previdian and Defused reported exploitation with web shells named x.php and z.php from at least three unique source IPs.
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U.S. CISA adds Dassault Systèmes DELMIA Apriso flaw to its Known Exploited Vulnerabilities catalog
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U.S. CISA adds Advantive VeraCore and Ivanti EPM flaws to its Known Exploited Vulnerabilities catalog
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