PT-2025-20957 · Microsoft · Urlmon+1

Felix Boulet · CVE-2025-29842 · Published 2025-05-13 · Updated 2025-07-19

Positive Technologies (AI Summary)

CVSS v2.0

7.6

High

Base vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: UrlMon (affected versions not specified)

Description: The issue allows an unauthorized attacker to bypass a security feature over a network by accepting extraneous untrusted data with trusted data in UrlMon. This enables attackers to affect the system.

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

Insufficient Verification of Data Authenticity

Weakness Enumeration

CWE-349

CWE-345

Related Identifiers

BDU:2025-05575

CVE-2025-29842

Affected Products

Urlmon

Windows

References · 10

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-29842 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29842 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/720990 · Security Note
• https://osv.dev/vulnerability/CVE-2025-29842 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-29842 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-29842 · Security Note
• https://bdu.fstec.ru/vul/2025-05575 · Security Note
• https://twitter.com/windowsforum/status/1922524387124666372 · Twitter Post
• https://t.me/cvenotify/122996 · Telegram Post
• https://twitter.com/CVEnew/status/1922339799568154750 · Twitter Post