{"id":"CVE-2026-103593","revision":"e909516f60ee4dab9d54c49b5614b856","records":[{"revision":"e909516f60ee4dab9d54c49b5614b856","observedAt":"2026-10-29T12:12:12.337+00:00","statement":{"source":"cve-program","id":"CVE-2026-103593","aliases":[],"title":"Fireware OS Stack Buffer Overflow in Logging Service Allows Remote Code Execution","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.","state":0,"publishedAt":"2026-10-27T15:52:28.244+00:00","modifiedAt":"2026-10-29T10:45:46.609+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\": \"2025.1\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"2026.4\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"12.0\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"12.12.4\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\",\n                    \"platforms\": [\n                        \"Default\"\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Fireware OS","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"WatchGuard\",\n                    \"product\": \"Fireware OS\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"12.0\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"12.5.22\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\",\n                    \"platforms\": [\n                        \"T15/T35\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":9.1,"severity":"CRITICAL"}],"references":["https://psirt.watchguard.com/CVE-2026-103593"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103593","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-103593","identifiers":["CVE-2026-103593"]},"retained":false,"historicalAffected":[]}],"coverage":[]}