{"schema":"threatline.record/2","record":{"id":"CVE-2026-103594","aliases":[],"summary":"Fireware OS Stack Buffer Overflow in WireGuard Configuration Allows Remote Code Execution","details":"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.","categories":["Network & edge"],"product":"Fireware OS","vendor":"WatchGuard","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103594","source_modified_at":"2026-10-27T15:52:27.758Z","fetched_at":"2026-10-27T16:27:21.584480Z","product":"Fireware OS","vendor":"WatchGuard","versions":[{"status":"affected","version":"2026.2","versionType":"custom","lessThan":"2026.4"},{"status":"affected","version":"12.12","versionType":"custom","lessThan":"12.12.4"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-103594","source_modified_at":"2026-10-27T15:52:27.758Z","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-2026-103594","source_modified_at":"2026-10-27T15:52:27.758Z","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"}],"cvss":9.5,"severity":"Critical","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-27T15:52:27.758Z","modified_at":"2026-10-27T15:52:27.758Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-103594","fetched_at":"2026-10-27T16:27:21.584480Z","source_modified_at":"2026-10-27T15:52:27.758Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://psirt.watchguard.com/CVE-2026-103594","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":"2026-10-27T15:52:27.758Z","content_hash":"45c84ff0a6d30204889b9ce9a0e7634e4c0f0b1ef8271bc01aa6197cb8a32623"}}