CVE-2026-103593

Fireware OS Stack Buffer Overflow in Logging Service Allows Remote Code Execution

En bref

Sévérité: CRITICAL 9.1
État: PUBLISHED
Publiée: 2026-10-27
Mise à jour: 2026-10-27
Attribuée par: WatchGuard
Statut NVD: Received

Description

A stack-based buffer overflow vulnerability in the Fireware OS logging service allows a network-adjacent attacker who can impersonate or intercept traffic to the configured log server to execute arbitrary code with root privileges by presenting a specially crafted certificate.

Scores

Version	Score	Vecteur	Évalué par
CVSS 4.0	CRITICAL 9.1	CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H	WatchGuard
CVSS 4.0	HIGH 7.1	CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD · 5d1c2695-1a31-4499-88ae-e847036fd7e3 (Secondary)

Faiblesses (CWE)

Références européennes

ENISA EUVD · EUVD-2026-111150
GCVE · GCVE-0-2026-103593

Produits affectés

Produit	Versions
WatchGuard · Fireware OS	affected 2025.1 < 2026.4 ; affected 12.0 < 12.12.4
WatchGuard · Fireware OS	affected 12.0 < 12.5.22

Références

https://psirt.watchguard.com/CVE-2026-103593

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
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