CVE-2025-50328
HighCVSS 7.3Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
Podatność w B1 Free Archiver v1.5.86 pozwala na obejście zabezpieczeń Windows Mark of the Web (MotW) dla plików wyodrębnionych z pobranych archiwów. Oprogramowanie nie przenosi strumienia danych alternatywnych 'Zone.Identifier' do wyodrębnionych plików, co umożliwia ich uruchomienie bez ostrzeżeń Windows Defender SmartScreen.
Risk Assessment
Organizacja narażona jest na uruchamianie niezaufanego kodu bez standardowych ograniczeń bezpieczeństwa, co może prowadzić do infekcji złośliwym oprogramowaniem lub innych zagrożeń dla systemu.
Recommendation
Zaleca się aktualizację B1 Free Archiver do najnowszej wersji oraz monitorowanie i skanowanie pobranych plików w celu wykrycia potencjalnych zagrożeń.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

