{"id":"CVE-2026-103594","aliases":[],"title":"Fireware OS Stack Buffer Overflow in WireGuard Configuration Allows Remote Code Execution","description":"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.","severity":"critical","score":9.5,"published":"2026-10-27T15:52:27.758Z","modified":"2026-10-27T15:52:27.758Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://psirt.watchguard.com/CVE-2026-103594"],"sources":[{"name":"CVE","id":"CVE-2026-103594","modified":"2026-10-27T15:52:27.758Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-103594"}],"assessments":[{"source":"CNA","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","score":9.5}]}