CVE-2025-50328

HIGH

7.3

Description

A vulnerability in B1 Free Archiver v1.5.86 allows files extracted from downloaded archives to bypass Windows Mark of the Web (MotW) protections. When an archive is downloaded from the internet and extracted using B1 Free Archiver, the software fails to propagate the 'Zone.Identifier' alternate data stream to the extracted files. As a result, these files can be executed without triggering Windows Defender SmartScreen warnings or security prompts, enabling untrusted code execution without standard security restrictions.

Details CVE

Score CVSS v3.17.3

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie4/29/2026

Derniere modification4/30/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-290

References

https://b1.org/(cve@mitre.org)

https://github.com/math69b/B1FREE/blob/main/B1%20Free%20Archiver%20version(cve@mitre.org)

https://github.com/math69b/B1FREE/blob/main/B1%20Free%20Archiver%20version(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlations IOC

Aucune correlation enregistree

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