CVE-2026-58052

3.3 Faible

Publiée le 28/06/2026 à 04:16 · Modifiée le 07/10/2026 à 22:49 · Analysée par le NVD · Source : disclosure@vulncheck.com

Description

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.

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Produits concernés

Scores CVSS

Version	Score	Source	Vecteur
4.0	4.8 Moyenne	disclosure@vulncheck.com	`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`
3.1	3.3 Faible	disclosure@vulncheck.com	`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N`

Faiblesses (CWE)

CWE-693

Références

https://github.com/bikini/exploitarium/tree/main/7zip-rar5-motw-chain-poc Broken Link
https://github.com/ip7z/7zip Product
https://www.vulncheck.com/advisories/7-zip-mark-of-the-web-bypass-via-rar5-alternate-data-stream-name-collision Third Party Advisory

CVE-2026-58052

Description

Produits concernés

Scores CVSS

Faiblesses (CWE)

Références

Ailleurs