{"schema":"threatline.record/2","record":{"id":"CVE-2020-3118","aliases":[],"summary":"Cisco IOS XR Software Discovery Protocol Format String Vulnerability","details":"Cisco IOS XR improperly validates string input from certain fields in Cisco Discovery Protocol messages. Exploitation could allow an unauthenticated, adjacent attacker to execute code with administrative privileges or cause a reload on an affected device.","categories":["Operating systems"],"product":"IOS XR","vendor":"Cisco","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2020-3118","source_modified_at":"2025-10-21T23:35:52.708Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Cisco IOS XR Software","vendor":"Cisco","versions":[{"lessThan":"6.6.3","status":"affected","version":"unspecified","versionType":"custom"}],"defaultStatus":null}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2020-3118","source_modified_at":"2025-10-21T23:35:52.708Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Cisco IOS XR Software","ecosystem":null},"version":"6.6.3","basis":"first unaffected version stated in the CVE record"}],"cvss":8.8,"severity":"High","kev":{"listed":true,"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.11685,"percentile":0.96061,"score_date":"2026-10-23"},"published_at":"2020-02-05T17:40:16.080Z","modified_at":"2025-10-21T23:35:52.708Z","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-2020-3118","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:35:52.708Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2020-3118","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-3118","source":"CISA KEV"},{"source":"CVE List","url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-iosxr-cdp-rce","tags":["vendor-advisory","x_refsource_CISCO","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3118","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2024-11-08T16:12:28.712809Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:35:52.708Z","content_hash":"2c884ec04e7d7f50124533efa90363a4d9e9673e1f99ff1eff6b7fa1be45c713"}}