CRITICALCVSS v4 9.5Vulnerability

CVE-2026-103594

A stack-based buffer overflow vulnerability in Fireware OS's WireGuard configuration processing allows a remote attacker that has man-in-the-middle TLS-decrypted access between the Firebox and WatchGuard Cloud to create a Denial of Service condition and potentially execute arbitrary code by tampering with a FireCloud Gateway configuration payload.

Properties

Severity
CRITICAL
Nvd fetched at
2026-10-27T19:32:16.133732+00:00
Cvss severity
CRITICAL
Cvss score
9.5
Retrieved at
2026-10-27T19:33:27+00:00
Score
9.5
Cvss version
4.0
Last source
NVD
Cve id
CVE-2026-103594
Cvss vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/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
First seen by Signal
2026-10-27T19:33:27+00:00
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/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
Published at
2026-10-27T16:17:28.517
Last modified
2026-10-27T16:17:28.517

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CVE-2026-103594 (CVSS v4 9.5) — Ninja Signal Threat Intelligence | Ninja Signal