{"schema_version":"1","data":[{"id":3523,"advisory_id":"b332409a-bf1d-4cea-af4f-8bdd83d2fb14","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-3452","source_published_at":"2021-11-03T00:00:00+00:00","published_at":"2026-10-24T21:36:26.539602+00:00","extraction_method":"structured","technologies":["adaptive-security-appliance-asa-and-firepower-threat-defense-ftd","core-kev"],"cve_ids":["CVE-2020-3452"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Cisco ASA and FTD Read-Only Path Traversal Vulnerability","summary":"Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an improper input validation vulnerability when HTTP requests process URLs. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device. CISA required action: Apply updates per vendor instructions.","evidence":"kev:CVE-2020-3452","products":[{"name":{"value":"Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2020-3452","aliases":["CVE-2020-3452"],"affected":[],"modified":"2021-11-03T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-20"],"cveID":"CVE-2020-3452","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-3452","dueDate":"2022-05-03","product":"Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)","dateAdded":"2021-11-03","vendorProject":"Cisco","requiredAction":"Apply updates per vendor instructions.","known_exploited":true,"shortDescription":"Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an improper input validation vulnerability when HTTP requests process URLs.  An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device.","vulnerabilityName":"Cisco ASA and FTD Read-Only Path Traversal Vulnerability","knownRansomwareCampaignUse":"Unknown"}},"related_cves":[{"value":"CVE-2020-3452","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null}}],"next_after":3523,"next_before":3523}