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Appaloosa Scout

Vulnerability · NVD

CVE-2026-58052

LOW 3.3

7-Zip for Windows through 26.01 fails to preserve the Mark-of-the-Web when extracting a crafted RAR5 archive, because its guard that suppresses an archive-supplied Zone.Identifier stream matches the exact name 'Zone.Identifier' while a RAR5 STM record named ':Zone.Identifier:$DATA' is not matched and NTFS canonicalizes it to the same stream, overwriting the propagated Internet-zone marker with ZoneId=0. A second STM record named '::$DATA' overwrites the extracted file's default data stream, letting an attacker defeat SmartScreen/MotW warnings and spoof file content.

Attack vector : Local No privileges required
Show raw CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS 0.12% exploit very unlikely percentile 1.9%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

  • 7-Zip Windows winget:7zip.7zip
    Affected ≤26.01 Fixed in > 26.01 Latest tracked 26.02 patched
Vulnerable CPE configurations (1)
Vendor Product Versions
7-zip 7-zip
All platforms (wildcard)
≤26.01
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