Detections
Analytics

Echo: 7zip: security update to 22.01+really26.01+dfsg-0+deb12u1

high Tenable Cloud Security Plugin ID 461900

Description

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

 - 7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory
 disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the
 SquashFS ReadBlock function allows an attacker-controlled node.Offset value to bypass the fragment bounds
 check, causing memcpy to read heap memory preceding the cache buffer into the extracted file. The
 vulnerability is exploitable only on 32-bit builds of 7-Zip where size_t is 32 bits, allowing the addition
 offsetInBlock + blockSize to wrap modulo 2³². On 64-bit builds the addition is promoted to 64 bits and the
 check correctly rejects the input. Version 26.01 patches the issue. (CVE-2026-48092)

Solution

Update the 7zip library and its related packages to version 22.01+really26.01+dfsg-0+deb12u1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-48092

Plugin Details

Severity: High

ID: 461900

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.65

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-48092

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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: 7/6/2026

Vulnerability Publication Date: 6/4/2026

Reference Information

CVE: CVE-2026-48092

IAVA: 2026-A-0525