Squid < 6.4 Remote Code Execution

critical Web App Scanning Plugin ID 114931

Synopsis

Squid < 6.4 Remote Code Execution

Description

According to its self-reported version number,the version of Squidcinstalled on the remote host is 5.x < 5.0.4 or prior to 4.13. It is, therefore, affected by a heap buffer overflow and possible remote code execution attack when processing URN.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Squid version 6.4 or later.

See Also

https://github.com/squid-cache/squid/security/advisories/GHSA-w4gv-vw3f-29g3

Plugin Details

Severity: Critical

ID: 114931

Type: remote

Published: 8/5/2025

Updated: 8/5/2025

Scan Template: api, basic, full, pci, scan

Risk Information

VPR

Risk Factor: High

Score: 7.8

CVSS v2

Risk Factor: High

Base Score: 8.5

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

CVSS Score Source: CVE-2025-54574

CVSS v3

Risk Factor: Critical

Base Score: 9.3

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

CVSS Score Source: CVE-2025-54574

Vulnerability Information

CPE: cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/31/2025

Reference Information

CVE: CVE-2025-54574