CVE-2025-21414 Windows Core Messaging Elevation of Privileges Vulnerability
An attacker can exploit a heap-based buffer overflow in Windows Core Messaging to elevate privileges on affected Windows systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-21414?
CVE-2025-21414 is a high-severity memory corruption vulnerability in Microsoft Windows 10 1507, published on 11 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Windows Core Messaging Elevation of Privileges Vulnerability
Weakness: CWE-122
Which versions are affected by CVE-2025-21414?
It affects 13 products.
Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2 and 7 more.
How do I fix CVE-2025-21414?
No fix has been published for CVE-2025-21414 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-2025-21414 being exploited?
There is no known exploitation of CVE-2025-21414 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10 1507
- CVE-2017-8543 Microsoft Windows Search Remote Code Execution
- CVE-2025-33053 Microsoft Windows External Control of File Name or Path
- CVE-2025-33073 Microsoft Windows SMB Client Improper Access Control
- CVE-2024-49039 Microsoft Windows Task Scheduler Privilege Escalation
- CVE-2024-43461 Microsoft Windows MSHTML Platform Spoofing
Sources
Also known as GHSA-j648-pq8h-2wmc.