CVE-2026-20005

{"id": "CVE-2026-20005", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20005", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-04T17:18:34.575633Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@cisco.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "affected": [{"source": "psirt@cisco.com", "affectedData": [{"vendor": "Cisco", "product": "Cisco Secure Firewall Threat Defense (FTD) Software", "versions": [{"status": "affected", "version": "7.6.0"}, {"status": "affected", "version": "7.6.1"}, {"status": "affected", "version": "7.6.2"}, {"status": "affected", "version": "7.6.2.1"}, {"status": "affected", "version": "7.7.0"}, {"status": "affected", "version": "7.7.10"}, {"status": "affected", "version": "7.7.10.1"}]}, {"vendor": "Cisco", "product": "Cisco Cyber Vision", "versions": [{"status": "affected", "version": "3.0.4"}, {"status": "affected", "version": "3.0.0"}, {"status": "affected", "version": "3.0.1"}, {"status": "affected", "version": "3.0.2"}, {"status": "affected", "version": "3.0.3"}, {"status": "affected", "version": "3.0.5"}, {"status": "affected", "version": "3.0.6"}, {"status": "affected", "version": "3.1.0"}, {"status": "affected", "version": "3.1.2"}, {"status": "affected", "version": "3.1.1"}, {"status": "affected", "version": "3.2.3"}, {"status": "affected", "version": "3.2.1"}, {"status": "affected", "version": "3.2.4"}, {"status": "affected", "version": "3.2.0"}, {"status": "affected", "version": "3.2.2"}, {"status": "affected", "version": "4.0.0"}, {"status": "affected", "version": "4.0.1"}, {"status": "affected", "version": "4.0.2"}, {"status": "affected", "version": "4.0.3"}, {"status": "affected", "version": "4.1.0"}, {"status": "affected", "version": "4.1.1"}, {"status": "affected", "version": "4.1.2"}, {"status": "affected", "version": "4.1.3"}, {"status": "affected", "version": "4.1.4"}, {"status": "affected", "version": "4.1.5"}, {"status": "affected", "version": "4.1.6"}, {"status": "affected", "version": "4.1.7"}, {"status": "affected", "version": "4.2.0"}, {"status": "affected", "version": "4.2.1"}, {"status": "affected", "version": "4.2.4"}, {"status": "affected", "version": "4.2.6"}, {"status": "affected", "version": "4.2.2"}, {"status": "affected", "version": "4.2.3"}, {"status": "affected", "version": "4.3.0"}, {"status": "affected", "version": "4.3.1"}, {"status": "affected", "version": "4.3.2"}, {"status": "affected", "version": "4.3.3"}, {"status": "affected", "version": "4.4.0"}, {"status": "affected", "version": "4.4.1"}, {"status": "affected", "version": "4.4.2"}, {"status": "affected", "version": "4.4.3"}, {"status": "affected", "version": "5.0.0"}, {"status": "affected", "version": "5.0.1"}, {"status": "affected", "version": "5.0.2"}, {"status": "affected", "version": "5.1.1"}, {"status": "affected", "version": "5.1.2"}, {"status": "affected", "version": "5.1.3"}, {"status": "affected", "version": "5.2.0"}, {"status": "affected", "version": "5.2.1"}, {"status": "affected", "version": "5.3.0"}, {"status": "affected", "version": "5.3.1"}, {"status": "affected", "version": "5.3.2"}]}, {"vendor": "Cisco", "product": "Cisco UTD SNORT IPS Engine Software", "versions": [{"status": "affected", "version": "17.2.1r"}, {"status": "affected", "version": "17.3.1a"}, {"status": "affected", "version": "17.3.2"}, {"status": "affected", "version": "17.3.3"}, {"status": "affected", "version": "17.3.4a"}, {"status": "affected", "version": "17.3.6"}, {"status": "affected", "version": "17.3.5"}, {"status": "affected", "version": "17.3.7"}, {"status": "affected", "version": "17.3.8"}, {"status": "affected", "version": "17.4.1a"}, {"status": "affected", "version": "17.4.2"}, {"status": "affected", "version": "17.4.1b"}, {"status": "affected", "version": "17.5.1a"}, {"status": "affected", "version": "17.6.1a"}, {"status": "affected", "version": "17.6.2"}, {"status": "affected", "version": "17.6.3a"}, {"status": "affected", "version": "17.6.4"}, {"status": "affected", "version": "17.6.5"}, {"status": "affected", "version": "17.6.6"}, {"status": "affected", "version": "17.6.7"}, {"status": "affected", "version": "17.6.8a"}, {"status": "affected", "version": "17.7.1a"}, {"status": "affected", "version": "17.7.2"}, {"status": "affected", "version": "17.10.1a"}, {"status": "affected", "version": "17.9.1a"}, {"status": "affected", "version": "17.9.2a"}, {"status": "affected", "version": "17.9.3a"}, {"status": "affected", "version": "17.9.4"}, {"status": "affected", "version": "17.9.5a"}, {"status": "affected", "version": "17.9.6"}, {"status": "affected", "version": "17.9.5e"}, {"status": "affected", "version": "17.9.5f"}, {"status": "affected", "version": "17.9.7a"}, {"status": "affected", "version": "17.9.8"}, {"status": "affected", "version": "17.9.7b"}, {"status": "affected", "version": "17.8.1a"}, {"status": "affected", "version": "17.11.1a"}, {"status": "affected", "version": "17.12.1a"}, {"status": "affected", "version": "17.12.2"}, {"status": "affected", "version": "17.12.3"}, {"status": "affected", "version": "17.12.4"}, {"status": "affected", "version": "17.12.4a"}, {"status": "affected", "version": "17.12.4b"}, {"status": "affected", "version": "17.12.5"}, {"status": "affected", "version": "17.12.5a"}, {"status": "affected", "version": "17.12.5b"}, {"status": "affected", "version": "17.12.5c"}, {"status": "affected", "version": "17.12.6"}, {"status": "affected", "version": "17.12.5d"}, {"status": "affected", "version": "17.13.1a"}, {"status": "affected", "version": "17.14.1a"}, {"status": "affected", "version": "17.15.1a"}, {"status": "affected", "version": "17.15.2a"}, {"status": "affected", "version": "17.15.2c"}, {"status": "affected", "version": "17.15.3"}, {"status": "affected", "version": "17.15.3a"}, {"status": "affected", "version": "17.15.4"}, {"status": "affected", "version": "17.15.4c"}, {"status": "affected", "version": "17.16.1a"}, {"status": "affected", "version": "17.17.1"}, {"status": "affected", "version": "17.18.1a"}, {"status": "affected", "version": "17.18.2"}]}]}], "published": "2026-03-04T17:16:18.110", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-multi-dos-XFWkWSwz", "tags": ["Vendor Advisory"], "source": "psirt@cisco.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-392"}]}], "descriptions": [{"lang": "en", "value": "Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection.\r\n\r This vulnerability is due to incomplete parsing of the SSL handshake ingress packets. An attacker could exploit this vulnerability by sending crafted SSL handshake packets. A successful exploit could allow the attacker to cause a denial of service (DoS) condition when the Snort 3 Detection Engine restarts unexpectedly."}, {"lang": "es", "value": "M\u00faltiples productos Cisco est\u00e1n afectados por una vulnerabilidad en el motor de detecci\u00f3n Snort 3 que podr\u00eda permitir a un atacante remoto no autenticado provocar el reinicio del motor de detecci\u00f3n Snort 3, lo que resultar\u00eda en una interrupci\u00f3n de la inspecci\u00f3n de paquetes. Esta vulnerabilidad se debe a un an\u00e1lisis incompleto de los paquetes de entrada de handshake SSL. Un atacante podr\u00eda explotar esta vulnerabilidad enviando paquetes de handshake SSL manipulados. Un exploit exitoso podr\u00eda permitir al atacante provocar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) cuando el motor de detecci\u00f3n Snort 3 se reinicia inesperadamente."}], "lastModified": "2026-09-01T19:39:42.450", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:cyber_vision:3.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3297323C-B263-45EA-90CE-2B8415C9E498"}, {"criteria": "cpe:2.3:a:cisco:cyber_vision:3.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "797AD8A4-083B-4A9E-A49D-65EE828E1637"}, {"criteria": "cpe:2.3:a:cisco:cyber_vision:3.0.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4EB16212-A9DC-4C8C-B220-9619C65436EB"}, {"criteria": "cpe:2.3:a:cisco:cyber_vision:3.0.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9C64043F-1F0D-47F7-AEEE-309B239891DB"}, {"criteria": "cpe:2.3:a:cisco:cyber_vision:3.0.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": 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