Vulnerability · NVD

CVE-2026-125742

CVE-2026-125742, high severity (CVSS 7.8): 1 tracked app concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 7.8
Exploitation: -
Tracked apps: 1
Still exposed: 0

Published on 2026-11-10

7-Zip before 26.06 contains a heap out-of-bounds write vulnerability in the LZX decoder that lets attackers corrupt memory when a continuation CAB volume declares a smaller window. Attackers can entice victims to extract crafted multi-volume CAB archives, where a stale _pos value bypasses bounds checks, enabling arbitrary code execution.

Attack vector : Local No privileges required

Show raw CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 <26.06 Fixed in 26.06 Latest tracked 26.06 patched

Observed affected builds (24)

26.05 26.04 26.03 26.02 26.01 26.00 25.01 25.00 24.09 24.08 24.07 24.06 24.05 23.01 22.01 22.00 21.07 21.06 19.00 19.00.00.0 18.06 18.05 18.01 16.04

Vulnerable CPE configurations (1)

Vendor	Product	Platform	Versions	CPE 2.3 URI
7-zip	7-zip All platforms (wildcard)	All platforms (wildcard)	<26.06	cpe:2.3:a:7-zip:7-zip::::::::

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