Detections
Analytics

Echo: 7zip: security update to 22.01+really26.02+dfsg-0+deb12u1

high Tenable Self-Hosted Container Security Plugin ID 457877

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-14266)

Solution

Update the 7zip library and its related packages to version 22.01+really26.02+dfsg-0+deb12u1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-14266

Plugin Details

Severity: High

ID: 457877

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: High

Score: 7.9

Percentile: 99.35

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-14266

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/18/2026

Vulnerability Publication Date: 7/2/2026

Reference Information

CVE: CVE-2026-14266

IAVA: 2026-A-0639