CVE-2026-85881 Microsoft Office Graphics Elevation of Privilege Vulnerability
An authorized attacker can elevate privileges via a stack-based buffer overflow in the Microsoft Graphics Component on Android.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-85881?
CVE-2026-85881 is a high-severity memory corruption vulnerability in Microsoft 365 Copilot, published on 13 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Stack-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges over a network.
Weakness: CWE-121
Which versions are affected by CVE-2026-85881?
It affects 1 product.
Products include Microsoft 365 Copilot.
How do I fix CVE-2026-85881?
No fix has been published for CVE-2026-85881 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-85881 being exploited?
There is no known exploitation of CVE-2026-85881 in the wild and no public exploit code.
Other vulnerabilities in Microsoft 365 Copilot
- CVE-2026-85885 Microsoft 365 Copilot Elevation of Privilege Vulnerability
- CVE-2026-50517 Microsoft M365 Copilot Remote Code Execution Vulnerability
- CVE-2026-54130 M365 Copilot Information Disclosure Vulnerability
- CVE-2025-60724 GDI+ Remote Code Execution Vulnerability
- CVE-2025-53766 GDI+ Remote Code Execution Vulnerability
Sources
Also known as GHSA-j3pf-m8p7-cgjj.