This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-14266 →
Categories
DEBIAN-CVE-2026-14266

7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary...

Original description

The description as published by the source.

7-Zip XZ Decompression Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of XZ chunked data. Crafted XZ-compressed data can trigger an overflow of a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-30169.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 7zip
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"22.01+really26.02+dfsg-0+deb12u1"}]}]
Debian:13 7zip
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14 7zip
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"26.02+dfsg-1"}]}]
Debian:12 p7zip
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.02+really26.02+dfsg-0+deb12u1"}]}]
Debian:13 p7zip
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"16.02+transitional.1"}]}]

References

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