Information disclosure in Microsoft Windows Kernel



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-29974
CWE-ID CWE-191
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Integer underflow

EUVDB-ID: #VU109106

Risk: Medium

CVSSv4.0: 4.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-29974

CWE-ID: CWE-191 - Integer underflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to integer underflow in Windows Kernel. A remote attacker on the local network can trick a victim to open a specially crafted file, trigger integer underflow and gain access to sensitive information on the target system.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 21H2 10.0.19041.3920 - 11 24H2 10.0.26100.3775

Windows Server: 2008 6.0.6003.22567 - 2025 10.0.26100.3775

CPE2.3 External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29974


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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