{"id":"CVE-2026-103594","revision":"ac21a16878be4fc09ffb7932fc5e4553","records":[{"revision":"ac21a16878be4fc09ffb7932fc5e4553","observedAt":"2026-10-27T16:43:42.843+00:00","statement":{"source":"cve-program","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.","state":0,"publishedAt":"2026-10-27T15:52:27.758+00:00","modifiedAt":"2026-10-27T15:52:27.758+00:00","affected":[{"ecosystem":"Vendor product","name":"Fireware OS","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"WatchGuard\",\n                    \"product\": \"Fireware OS\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"2026.2\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"2026.4\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"12.12\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"12.12.4\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\",\n                    \"platforms\": [\n                        \"Default\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","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,"severity":"CRITICAL"}],"references":["https://psirt.watchguard.com/CVE-2026-103594"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103594","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-103594","identifiers":["CVE-2026-103594"]},"retained":false,"historicalAffected":[]}],"coverage":[]}