CVE-2025-53803 Windows Kernel Memory Information Disclosure Vulnerability
An authorized local attacker can exploit a Windows Kernel error message generation flaw to disclose sensitive information.
- 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-2025-53803?
CVE-2025-53803 is a medium-severity vulnerability in Microsoft Windows 10 1507, published on 9 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Generation of error message containing sensitive information in Windows Kernel allows an authorized attacker to disclose information locally.
Weakness: CWE-209
Which versions are affected by CVE-2025-53803?
It affects 14 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 8 more.
How do I fix CVE-2025-53803?
No fix has been published for CVE-2025-53803 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-53803 being exploited?
There is no known exploitation of CVE-2025-53803 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-2g55-8gcv-fc24.