{"api_version":"1","generated_at":"2026-04-17T09:16:03+00:00","cve":"CVE-2026-20008","urls":{"html":"https://cve.report/CVE-2026-20008","api":"https://cve.report/api/cve/CVE-2026-20008.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-20008","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-20008"},"summary":{"title":"Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Lua Code Injection Vulnerability","description":"A vulnerability in a small subset of CLI commands that are used on Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, local attacker to craft Lua code that could be used on the underlying operating system as root.\r\n\r\nThis vulnerability exists because user-provided input is not properly sanitized. An attacker could exploit this vulnerability by crafting valid Lua code and submitting it as a malicious parameter for a CLI command. A successful exploit could allow the attacker to inject Lua code, which could lead to arbitrary code execution as the root user. To exploit this vulnerability, an attacker must have valid Administrator credentials.","state":"PUBLISHED","assigner":"cisco","published_at":"2026-03-04 18:16:14","updated_at":"2026-04-16 20:13:21"},"problem_types":["CWE-78","CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')"],"metrics":[{"version":"3.1","source":"psirt@cisco.com","type":"Primary","score":"6","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","baseScore":6,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSSV3_1","score":"6","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","data":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":6,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-luainject-VescqgmS","name":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-luainject-VescqgmS","refsource":"psirt@cisco.com","tags":["Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-20008","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20008","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","version":"affected 9.12.3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","version":"affected 9.12.1","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","version":"affected 9.12.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","version":"affected 9.12.4","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","version":"affected 9.12.3.2","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","version":"affected 9.12.3.7","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","version":"affected 9.12.2.5","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","version":"affected 9.12.3.12","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","version":"affected 9.12.1.3","platforms":[]},{"source":"CNA","vendor":"Cisco","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","version":"affected 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vulnerability in a small subset of CLI commands that are used on Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, local attacker to craft Lua code that could be used on the underlying operating system as root.\r\n\r\nThis vulnerability exists because user-provided input is not properly sanitized. An attacker could exploit this vulnerability by crafting valid Lua code and submitting it as a malicious parameter for a CLI command. A successful exploit could allow the attacker to inject Lua code, which could lead to arbitrary code execution as the root user. To exploit this vulnerability, an attacker must have valid Administrator credentials."}],"exploits":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":6,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"format":"cvssV3_1"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","description":"Improper Neutralization of Special Elements used in an OS Command ('OS Command 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Secure Firewall Adaptive Security Appliance and Secure Fir","CVE":"CVE-2026-20008","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"20008","Ordinal":"1","NoteData":"A vulnerability in a small subset of CLI commands that are used on Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, local attacker to craft Lua code that could be used on the underlying operating system as root.\r\n\r\nThis vulnerability exists because user-provided input is not properly sanitized. An attacker could exploit this vulnerability by crafting valid Lua code and submitting it as a malicious parameter for a CLI command. A successful exploit could allow the attacker to inject Lua code, which could lead to arbitrary code execution as the root user. To exploit this vulnerability, an attacker must have valid Administrator credentials.","Type":"Description","Title":"Cisco Secure Firewall Adaptive Security Appliance and Secure Fir"}]}}}