{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-20026", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2025-10-08T11:59:15.352Z", "datePublished": "2026-01-07T16:23:43.283Z", "dateUpdated": "2026-02-12T18:48:34.084Z" }, "containers": { "cna": { "title": "Multiple Cisco Products Snort 3 DCERPC Vulnerabilities", "metrics": [ { "format": "cvssV3_1", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L", "baseScore": 5.8, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW" } } ], "descriptions": [ { "lang": "en", "value": "Multiple Cisco products are affected by a vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to restart, resulting in an interruption of packet inspection.\r\n\r\nThis vulnerability is due to an error in buffer handling logic when processing DCE/RPC requests, which can result in a buffer use-after-free read. An attacker could exploit this vulnerability by sending a large number of DCE/RPC requests through an established connection that is inspected by Snort 3. A successful exploit could allow the attacker to unexpectedly restart the Snort 3 Detection Engine, which could cause a denial of service (DoS)." } ], "references": [ { "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-dcerpc-vulns-J9HNF4tH", "name": "cisco-sa-snort3-dcerpc-vulns-J9HNF4tH" } ], "exploits": [ { "lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory." } ], "source": { "advisory": "cisco-sa-snort3-dcerpc-vulns-J9HNF4tH", "discovery": "EXTERNAL", "defects": [ "CSCwq75339" ] }, "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Double Free", "type": "cwe", "cweId": "CWE-415" } ] } ], "affected": [ { "vendor": "Cisco", "product": "Cisco Secure Firewall Threat Defense (FTD) Software", "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": "7.0.1.1", "status": "affected" }, { "version": "7.1.0.1", "status": "affected" }, { "version": "7.0.2", "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": "7.3.0", "status": "affected" }, { "version": "7.2.2", "status": "affected" }, { "version": "7.2.3", "status": "affected" }, { "version": "7.3.1", "status": "affected" }, { "version": "7.1.0.3", "status": "affected" }, { "version": "7.2.4", "status": "affected" }, { "version": "7.0.6", "status": "affected" }, { "version": "7.2.5", "status": "affected" }, { "version": "7.2.4.1", "status": "affected" }, { "version": "7.3.1.1", "status": "affected" }, { "version": "7.4.0", "status": "affected" }, { "version": "7.0.6.1", "status": "affected" }, { "version": "7.2.5.1", "status": "affected" }, { "version": "7.4.1", "status": "affected" }, { "version": "7.2.6", "status": "affected" }, { "version": "7.0.6.2", "status": "affected" }, { "version": "7.4.1.1", "status": "affected" }, { "version": "7.2.7", "status": "affected" }, { "version": "7.2.5.2", "status": "affected" }, { "version": "7.3.1.2", "status": "affected" }, { "version": "7.2.8", "status": "affected" }, { "version": "7.6.0", "status": "affected" }, { "version": "7.4.2", "status": "affected" }, { "version": "7.2.8.1", "status": "affected" }, { "version": "7.0.6.3", "status": "affected" }, { "version": "7.4.2.1", "status": "affected" }, { "version": "7.2.9", "status": "affected" }, { "version": "7.0.7", "status": "affected" }, { "version": "7.7.0", "status": "affected" }, { "version": "7.4.2.2", "status": "affected" }, { "version": "7.2.10", "status": "affected" }, { "version": "7.6.1", "status": "affected" }, { "version": "7.4.2.3", "status": "affected" }, { "version": "7.0.8", "status": "affected" }, { "version": "7.6.2", "status": "affected" }, { "version": "7.7.10", "status": "affected" }, { "version": "7.0.8.1", "status": "affected" }, { "version": "7.6.2.1", "status": "affected" }, { "version": "7.7.10.1", "status": "affected" }, { "version": "7.4.2.4", "status": "affected" }, { "version": "7.2.10.2", "status": "affected" }, { "version": "7.4.3", "status": "affected" } ], "defaultStatus": "unknown" }, { "vendor": "Cisco", "product": "Cisco UTD SNORT IPS Engine Software", "versions": [ { "version": "3.17.1S", "status": "affected" }, { "version": "16.12.3", "status": "affected" }, { "version": "Fuji-16.9.5", "status": "affected" }, { "version": "16.12.4", "status": "affected" }, { "version": "17.3.1a", "status": "affected" }, { "version": "16.6.6", "status": "affected" }, { "version": "16.12.2", "status": "affected" }, { "version": "Fuji-16.9.6", "status": "affected" }, { "version": "3.17.0S", "status": "affected" }, { "version": "Fuji-16.9.3", "status": "affected" }, { "version": "Denali-16.3.7", "status": "affected" }, { "version": "Fuji-16.9.2", "status": "affected" }, { "version": "Fuji-16.9.4", "status": "affected" }, { "version": "Everest-16.6.4", "status": "affected" }, { "version": "Everest-16.6.3", "status": "affected" }, { "version": "16.6.5", "status": "affected" }, { "version": "Denali-16.3.5", "status": "affected" }, { "version": "17.2.1r", "status": "affected" }, { "version": "17.1.1", "status": "affected" }, { "version": "Everest-16.6.2", "status": "affected" }, { "version": "16.6.7a", "status": "affected" }, { "version": "Denali-16.3.4", "status": "affected" }, { "version": "16.6.1", "status": "affected" }, { "version": "Denali-16.3.9", "status": "affected" }, { "version": "Denali-16.3.3", "status": "affected" }, { "version": "16.12.1a", "status": "affected" }, { "version": "17.3.2", "status": "affected" }, { "version": "17.4.1a", "status": "affected" }, { "version": "16.12.5", "status": "affected" }, { "version": "17.5.1", "status": "affected" }, { "version": "Fuji-16.9.7", "status": "affected" }, { "version": "16.6.9", "status": "affected" }, { "version": "17.3.3", "status": "affected" }, { "version": "17.5.1a", "status": "affected" }, { "version": "17.3.4", "status": "affected" }, { "version": "17.3.4a", "status": "affected" }, { "version": "17.4.2", "status": "affected" }, { "version": "17.4.1b", "status": "affected" }, { "version": "17.6.1a", "status": "affected" }, { "version": "16.6.10", "status": "affected" }, { "version": "17.7.1a", "status": "affected" }, { "version": "16.12.6", "status": "affected" }, { "version": "Fuji-16.9.8", "status": "affected" }, { "version": "17.6.2", "status": "affected" }, { "version": "17.8.1a", "status": "affected" }, { "version": "16.12.7", "status": "affected" }, { "version": "17.3.5", "status": "affected" }, { "version": "17.6.3", "status": "affected" }, { "version": "17.6.3a", "status": "affected" }, { "version": "17.7.2", "status": "affected" }, { "version": "17.9.1a", "status": "affected" }, { "version": "17.6.4", "status": "affected" }, { "version": "17.10.1a", "status": "affected" }, { "version": "17.3.6", "status": "affected" }, { "version": "16.12.8", "status": "affected" }, { "version": "17.3.7", "status": "affected" }, { "version": "17.9.2a", "status": "affected" }, { "version": "17.6.5", "status": "affected" }, { "version": "17.11.1a", "status": "affected" }, { "version": "17.9.3a", "status": "affected" }, { "version": "17.12.1a", "status": "affected" }, { "version": "17.9.4", "status": "affected" }, { "version": "17.6.6", "status": "affected" }, { "version": "17.3.8", "status": "affected" }, { "version": "17.3.8a", "status": "affected" }, { "version": "17.6.6a", "status": "affected" }, { "version": "17.9.4a", "status": "affected" }, { "version": 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{ "version": "17.12.5a", "status": "affected" }, { "version": "17.9.7a", "status": "affected" }, { "version": "17.15.3a", "status": "affected" }, { "version": "17.15.3", "status": "affected" }, { "version": "17.12.5b", "status": "affected" }, { "version": "17.12.5c", "status": "affected" }, { "version": "17.15.4", "status": "affected" }, { "version": "17.9.7b", "status": "affected" }, { "version": "17.18.1", "status": "affected" }, { "version": "17.18.1a", "status": "affected" }, { "version": "17.12.6", "status": "affected" }, { "version": "17.9.8", "status": "affected" }, { "version": "17.15.4c", "status": "affected" }, { "version": "17.12.5d", "status": "affected" }, { "version": "17.18.2", "status": "affected" } ], "defaultStatus": "unknown" } ], "providerMetadata": { "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2026-02-12T18:48:34.084Z" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-01-07T16:53:28.503254Z", "id": "CVE-2026-20026", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-07T16:54:24.277Z" } } ] } }