PT-2025-34295 · Microsoft · Windows

Published 2025-08-21 · Updated 2025-09-03 · CVE-2025-55229

Positive Technologies · (AI Summary)

CVSS v3.1

5.3

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions:

Windows (affected versions not specified)

Description:

Improper verification of cryptographic signature in Windows Certificates allows an unauthorized attacker to perform spoofing over a network.

Recommendations:

At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

CVE-2025-55229

Affected Products

Windows

References · 12

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-55229 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-55229 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-55229 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55229 · Vendor Advisory
• https://t.me/CVEtracker/30628 · Telegram Post
• https://t.me/msrcreports/2119 · Telegram Post
• https://twitter.com/windowsforum/status/1958636028471722306 · Twitter Post
• https://twitter.com/endi24/status/1958660249113575562 · Twitter Post
• https://twitter.com/CVEnew/status/1958624564289970322 · Twitter Post
• https://twitter.com/cheinyeanlim/status/1962189261576503602 · Twitter Post
• https://twitter.com/cheinyeanlim/status/1960511230805991654 · Twitter Post
• https://reddit.com/r/sysadmin/comments/1mx0lxt/windows_10_21st_aug_new_update · Reddit Post