CVE-2026-103594

Vendor

WatchGuard

Product

Fireware OS

CVSS v4.0

9.5 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

EPSS

0.004 (p38)

Weakness

CWE-121, CWE-787, CWE-1284

Exposure class

Edge / VPN / firewall

Every item in the archive that references this CVE, highest rank first. Headlines open the publisher.

1. 32
   CVE NVD 4d ago

   A stack-based buffer overflow vulnerability in Fireware OS's WireGuard configuration processing allows a remote attacker that has man-in-the-middle…

   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…

   CVSS 9.5 CVE-2026-103594 WatchGuard