{"schema":"threatline.record/2","record":{"id":"CVE-2026-103593","aliases":[],"summary":"Fireware OS Stack Buffer Overflow in Logging Service Allows Remote Code Execution","details":"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.","categories":["Network & edge"],"product":"Fireware OS","vendor":"WatchGuard","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103593","source_modified_at":"2026-10-27T15:52:28.244Z","fetched_at":"2026-10-27T16:27:21.584480Z","product":"Fireware OS","vendor":"WatchGuard","versions":[{"status":"affected","version":"2025.1","versionType":"custom","lessThan":"2026.4"},{"status":"affected","version":"12.0","versionType":"custom","lessThan":"12.12.4"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103593","source_modified_at":"2026-10-27T15:52:28.244Z","fetched_at":"2026-10-27T16:27:21.584480Z","product":"Fireware OS","vendor":"WatchGuard","versions":[{"status":"affected","version":"12.0","versionType":"custom","lessThan":"12.5.22"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103593","source_modified_at":"2026-10-27T15:52:28.244Z","fetched_at":"2026-10-27T16:27:21.584480Z","package":{"name":"Fireware OS","ecosystem":null},"version":"2026.4","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103593","source_modified_at":"2026-10-27T15:52:28.244Z","fetched_at":"2026-10-27T16:27:21.584480Z","package":{"name":"Fireware OS","ecosystem":null},"version":"12.12.4","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103593","source_modified_at":"2026-10-27T15:52:28.244Z","fetched_at":"2026-10-27T16:27:21.584480Z","package":{"name":"Fireware OS","ecosystem":null},"version":"12.5.22","basis":"first unaffected version stated in the CVE record"}],"cvss":9.1,"severity":"Critical","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-27T15:52:28.244Z","modified_at":"2026-10-27T15:52:28.244Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-103593","fetched_at":"2026-10-27T16:27:21.584480Z","source_modified_at":"2026-10-27T15:52:28.244Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://psirt.watchguard.com/CVE-2026-103593","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-27T15:52:28.244Z","content_hash":"1470415e14ce03d96dde24af9affe209eabb14e9f146ef3d06bfd5f1c121b3e4"}}