Use After Free in Microsoft 365_copilot
CVE-2026-24285
Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.
Vulnerability class: Use-After-Free
EPSS: 0.000 (13.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft 365_copilot
- Microsoft Office For Android — versions 16.0.1
- Microsoft Office
- Microsoft Windows_10_1607
- Microsoft Windows_10_1809
- Microsoft Windows_10_21h2
- Microsoft Windows_10_22h2
- Microsoft Windows 10 Version 1607 — versions 10.0.14393.0
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19044.0
Weakness classification (CWE)
References
- secure@microsoft.com (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-24285?
- CVE-2026-24285 is a high-severity vulnerability in Microsoft 365_copilot, classified under Use After Free. CVSS score: 7.0/10. Published 2026-03-10.
- How severe is CVE-2026-24285?
- High severity. CVSS v3 base score is 7.0 out of 10.