Description
Stack-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges over a network.
Affected products
microsoft: 365 copilot
References1
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85881 PatchVendor Advisory
Metrics
- CVSS 3.1
-
8.0
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 53 · as of 11 November 2026
- CWE
- CWE-121
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.