Squid's URN Handling can lead to Buffer Overflow (squid-cache squid)

CVE-2025-54574

CRITICAL 9.3

En bref

Source: NVD
EPSS: EPSS 23.96 % · centile 98 (2026-10-31)
État: PUBLISHED
Publiée: 2025-08-01 18:02 UTC
Mise à jour: 2025-11-05 17:04 UTC
Attribuée par: GitHub_M
Statut NVD: Modified

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Description

Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions.

Faiblesses (CWE)

CWE-122 — Débordement de tampon sur le tas
CWE-787 — Écriture hors limites

Références

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	CRITICAL 9.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H	GitHub_M
CVSS 3.1	CRITICAL 9.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H	NVD · security-advisories@github.com (Secondary)
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)

Références européennes

ENISA EUVD · EUVD-2025-23392
GCVE · GCVE-0-2025-54574

Avis du CERT-FR

CERTFR-2025-AVI-0647 — Vulnérabilité dans Squid · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* < 6.4

Produits affectés

Produit	Versions
squid-cache · squid	affected < 6.4

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD

💣 Squid's URN Handling can lead to Buffer Overflow (squid-cache squid)