CRITICAL 9.6 Microsoft
CVE-2026-91729
Chromium CVE-2026-91729: Use after free
Microsoft Security Update 2026-Sep: Chromium CVE-2026-91729: Use after free
Affected Products
- Microsoft Edge (Chromium-based)
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-91729
- https://nvd.nist.gov/vuln/detail/CVE-2026-91729
This critical severity vulnerability with a CVSS score of 9.6 was published on 2026-09-08 via Microsoft. Affected: Microsoft Edge (Chromium-based).
Risk Timeline
CVE Disclosed2026-09-08 · 52 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-91729NVD / MITRE
nvd.nist.gov/vuln/detail/CVE-2026-91729Related Vulnerabilities
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|---|---|---|---|
| CVE-2026-63508 | Microsoft Planetary Computer Pro Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
| CVE-2026-65667 | Microsoft Teams Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
| CVE-2026-65801 | Microsoft Exchange Online Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
| CVE-2026-69836 | Microsoft Entra ID Remote Code Execution Vulnerability | CRITICAL | 10.0 |
| CVE-2026-96207 | Microsoft Partner Center Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
| CVE-2026-97785 | AAD App Proxy Elevation of Privilege Vulnerability | CRITICAL | 10.0 |
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