CVE-2025-30388 Windows Graphics Component Remote Code Execution Vulnerability
An attacker can execute arbitrary code locally via a heap-based buffer overflow in the Windows Win32K graphics component.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-30388?
CVE-2025-30388 is a high-severity memory corruption vulnerability in Microsoft 365 Copilot, published on 13 May 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Heap-based buffer overflow in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally.
Which versions are affected by CVE-2025-30388?
It affects 18 products.
Products include Microsoft 365 Copilot, Microsoft Office, Microsoft Office Long Term Servicing Channel, Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809 and 12 more.
How do I fix CVE-2025-30388?
No fix has been published for CVE-2025-30388 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-2025-30388 being exploited?
There is no known exploitation of CVE-2025-30388 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-9j2q-rv22-36xm.