CVE-2026-58052

EUVD-2026-39972
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.3 LOW
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 5.83%
Affected Products (NVD)
VendorProductVersion
7-zip7-zip
𝑥
≤ 26.01
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
7zip
bookworm
ignored
bookworm (security)
vulnerable
forky
26.03+dfsg-3
fixed
sid
26.03+dfsg-3
fixed
trixie
ignored
p7zip
bookworm
ignored
bookworm (security)
vulnerable
bullseye
ignored
trixie
16.02+transitional.1
fixed
Vulnerability Media Exposure