Microsoft security updates
Microsoft Security Patch Roundup — Week of August 31, 2026
Official Microsoft Security Response Center updates published during the past week, collected for patch planning and review.
Published 31 August 2026 · RCW IT Training
Important: Review the linked Microsoft advisory, affected-product information and available mitigations before deployment. This roundup is an index of official notices, not a substitute for change testing or incident response guidance.
Official MSRC updates
- Chromium: CVE-2026-79185 Information leak in DOM (28 Aug 2026)
- Chromium: CVE-2026-79184 Missing authorization in Preload (28 Aug 2026)
- Chromium: CVE-2026-79183 Use after free in Accessibility (28 Aug 2026)
- Chromium: CVE-2026-79182 Improper input validation in Media (28 Aug 2026)
- Chromium: CVE-2026-79181 Observable discrepancy in Glic (28 Aug 2026)
- Chromium: CVE-2026-79179 Incorrect authorization in DOM (28 Aug 2026)
- Chromium: CVE-2026-79178 Incorrect authorization in Web Authentication (Passkeys & Security Keys) (28 Aug 2026)
- Chromium: CVE-2026-79177 Incorrect authorization in Media (28 Aug 2026)
- Chromium: CVE-2026-79176 UI misrepresentation in Extensions (28 Aug 2026)
- Chromium: CVE-2026-79175 Type confusion in Accessibility (28 Aug 2026)
- Chromium: CVE-2026-79174 Incorrect authorization in Extensions (28 Aug 2026)
- Chromium: CVE-2026-79173 UI misrepresentation in WebAppInstalls (28 Aug 2026)
- Chromium: CVE-2026-79155 Race condition in FileSystem (28 Aug 2026)
- Chromium: CVE-2026-79154 Missing authorization in DevTools (28 Aug 2026)
- Chromium: CVE-2026-79151 Improper input validation in Safebrowsing (28 Aug 2026)
- Chromium: CVE-2026-79150 Use after free in Views (28 Aug 2026)
- Chromium: CVE-2026-79149 Use after free in ANGLE (28 Aug 2026)
- Chromium: CVE-2026-79148 Off-by-one error in DevTools (28 Aug 2026)
- Chromium: CVE-2026-79147 Information leak in Skia (28 Aug 2026)
- Chromium: CVE-2026-79144 Information leak in Skia (28 Aug 2026)
- Chromium: CVE-2026-79143 Incorrect authorization in FileSystem (28 Aug 2026)
- Chromium: CVE-2026-79142 Buffer overflow in ANGLE (28 Aug 2026)
- Chromium: CVE-2026-79141 Incorrect authorization in Browser (28 Aug 2026)
- Chromium: CVE-2026-79140 Use after free in Views (28 Aug 2026)
- Chromium: CVE-2026-79139 Improper input validation in Media (28 Aug 2026)
- Chromium: CVE-2026-79138 Out of bounds write in ANGLE (28 Aug 2026)
- Chromium: CVE-2026-79137 Incorrect authorization in Extensions (28 Aug 2026)
- Chromium: CVE-2026-79136 Incorrect authorization in ServiceWorker (28 Aug 2026)
- Chromium: CVE-2026-79134 Incorrect authorization in GetUserMedia (28 Aug 2026)
- Chromium: CVE-2026-79133 Incorrect authorization in Forms (28 Aug 2026)
Recommended next steps
- Identify affected assets and confirm update applicability.
- Prioritise actively exploited or internet-facing risk according to your organisation’s process.
- Test patches in a representative ring, deploy in approved windows and verify service health.
- Record exceptions, mitigations and the next review date.