CVE-2025-55229 Windows Certificate Spoofing Vulnerability
An attacker can spoof certificates over the network due to improper signature verification, bypassing security controls in Windows.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-55229?
CVE-2025-55229 is a medium-severity vulnerability in Microsoft Windows 10 1507, published on 21 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper verification of cryptographic signature in Windows Certificates allows an unauthorized attacker to perform spoofing over a network.
Weakness: CWE-347
Which versions are affected by CVE-2025-55229?
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-2025-55229?
No fix has been published for CVE-2025-55229 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-55229 being exploited?
There is no known exploitation of CVE-2025-55229 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-vj5w-xw66-qjq5.