What’s Vulnerable › Vulnerabilities

CVE-2026-85881: Microsoft Office Graphics Elevation of Privilege Vulnerability

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-13 · updated 2026-10-31
• Weakness: CWE-121

Description

Stack-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges over a network.

Affected products

• Microsoft 365 Copilot: from 16.0.16026.20172 before 16.0.20430.20000 — fixed in 16.0.20430.20000
• Microsoft Office for Android: from 16.0.1 before 16.0.20430.20000 — fixed in 16.0.20430.20000

How to fix

Upgrade to a fixed version: Microsoft 365 Copilot 16.0.20430.20000; Microsoft Office for Android 16.0.20430.20000. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85881

Get alerted when CVE-2026-85881 or the next vulnerability affects your stack