{"id":"CVE-2026-82819","state":"PUBLISHED","title":"Universal Naming Convention (UNC) Path Injection in Cerberus FTP Server","description":"A vulnerability in Cerberus FTP Server allows an authenticated remote attacker to perform UNC path injection via a manipulated parameter. By supplying a malicious SMB share path, an attacker can execute authentication coercion against the underlying server, resulting in the leakage of the Cerberus service account's Net-NTLMv2 hash. This issue has been resolved in Cerberus FTP Server: 2026.3.0.","publishedAt":"2026-10-21T04:30:40.808Z","updatedAt":"2026-10-30T16:33:26.805Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","source":"NCSC-FI"},"assigner":"NCSC-FI","products":["Cerberus Cerberus FTP Server"],"affected":[{"vendor":"Cerberus","product":"Cerberus FTP Server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2026.3.0","versionType":"custom"}],"platforms":["Windows"]}],"references":["https://www.cerberusftp.com/releasenotes/","https://labs.reversec.com/advisories/2026/09/universal-naming-convention-unc-path-injection-in-cerberus-ftp-server"],"weaknesses":["CWE-40"],"ingestedAt":"2026-10-30T16:46:06.675Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/82xxx/CVE-2026-82819.json","commit":"3cf5ba03e4cbb8914db61a64f787b6e810184617","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82819","state":"PUBLISHED","datePublished":"2026-10-21T04:30:40.808Z","dateUpdated":"2026-10-30T16:33:26.805Z","assignerShortName":"NCSC-FI","assignerOrgId":"db4dfee8-a97e-4877-bfae-eba6d14a2166","dateReserved":"2026-08-31T05:33:33.295Z"},"containers":{"cna":{"title":"Universal Naming Convention (UNC) Path Injection in Cerberus FTP Server","descriptions":[{"lang":"en","value":"A vulnerability in Cerberus FTP Server allows an authenticated remote attacker to perform UNC path injection via a manipulated parameter. By supplying a malicious SMB share path, an attacker can execute authentication coercion against the underlying server, resulting in the leakage of the Cerberus service account's Net-NTLMv2 hash. This issue has been resolved in Cerberus FTP Server: 2026.3.0."}],"affected":[{"vendor":"Cerberus","product":"Cerberus FTP Server","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2026.3.0","versionType":"custom"}],"platforms":["Windows"]}],"references":[{"url":"https://www.cerberusftp.com/releasenotes/","tags":["release-notes"]},{"url":"https://labs.reversec.com/advisories/2026/09/universal-naming-convention-unc-path-injection-in-cerberus-ftp-server","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":7.1,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-40","lang":"en","description":"CWE-40 Path traversal: '\\\\UNC\\share\\name\\' (windows UNC share)","type":"CWE"}]}],"providerMetadata":{"shortName":"NCSC-FI","orgId":"db4dfee8-a97e-4877-bfae-eba6d14a2166","dateUpdated":"2026-10-21T04:30:40.808Z"},"datePublic":"2026-09-14T09:34:00.000Z","impacts":[{"capecId":"CAPEC-664","descriptions":[{"lang":"en","value":"CAPEC-664 Server Side Request Forgery"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://labs.reversec.com/advisories/2026/09/universal-naming-convention-unc-path-injection-in-cerberus-ftp-server","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T16:33:06.688294Z","id":"CVE-2026-82819","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-30T16:33:26.805Z"}}]}}}