{"schema":"threatline.record/2","record":{"id":"CVE-2026-20131","aliases":[],"summary":"Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data Vulnerability","details":"Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management contain a deserialization of untrusted data vulnerability in the web-based management interface that could allow an unauthenticated, remote attacker to execute arbitrary Java code as root on an affected device.","categories":["Network & edge"],"product":"Secure Firewall Management Center (FMC)","vendor":"Cisco","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-20131","source_modified_at":"2026-08-14T03:55:24.856Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Cisco Secure Firewall Management Center (FMC)","vendor":"Cisco","versions":[{"version":"7.0.0","status":"affected"},{"version":"7.0.0.1","status":"affected"},{"version":"7.0.1","status":"affected"},{"version":"7.1.0","status":"affected"},{"version":"6.4.0.13","status":"affected"},{"version":"7.0.1.1","status":"affected"},{"version":"6.4.0.14","status":"affected"},{"version":"7.1.0.1","status":"affected"},{"version":"7.0.2","status":"affected"},{"version":"6.4.0.15","status":"affected"},{"version":"7.2.0","status":"affected"},{"version":"7.0.2.1","status":"affected"},{"version":"7.0.3","status":"affected"},{"version":"7.1.0.2","status":"affected"},{"version":"7.2.0.1","status":"affected"},{"version":"7.0.4","status":"affected"},{"version":"7.2.1","status":"affected"},{"version":"7.0.5","status":"affected"},{"version":"6.4.0.16","status":"affected"},{"version":"7.3.0","status":"affected"},{"version":"7.2.2","status":"affected"},{"version":"7.3.1","status":"affected"},{"version":"7.2.3","status":"affected"},{"version":"7.1.0.3","status":"affected"},{"version":"7.2.3.1","status":"affected"},{"version":"7.2.4","status":"affected"},{"version":"7.0.6","status":"affected"},{"version":"7.2.4.1","status":"affected"},{"version":"7.2.5","status":"affected"},{"version":"7.3.1.1","status":"affected"}],"defaultStatus":"unknown"}],"fixed_versions":[],"cvss":10,"severity":"Critical","kev":{"listed":true,"date_added":"2026-03-19","due_date":"2026-03-22","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","ransomware_campaign_use":"Known"},"epss":{"probability":0.43166,"percentile":0.98724,"score_date":"2026-10-23"},"published_at":"2026-03-04T17:17:56.008Z","modified_at":"2026-08-14T03:55:24.856Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-20131","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-08-14T03:55:24.856Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-20131","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-rce-NKhnULJh"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20131","source":"CISA KEV"},{"source":"CVE List","url":"https://aws.amazon.com/blogs/security/amazon-threat-intelligence-teams-identify-interlock-ransomware-campaign-targeting-enterprise-firewalls/","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20131","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2026-03-04T00:00:00+00:00"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-08-14T03:55:24.856Z","content_hash":"2042530e7415558985fd309df71b9e8972d2182edd89dbf4ca0461d2e5b281f8"}}