{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77797","assignerOrgId":"9974b330-7714-4307-a722-5648477acda7","state":"PUBLISHED","assignerShortName":"rapid7","dateReserved":"2026-08-21T13:21:29.921Z","datePublished":"2026-09-24T13:49:41.379Z","dateUpdated":"2026-09-29T10:39:07.525Z"},"containers":{"cna":{"providerMetadata":{"orgId":"9974b330-7714-4307-a722-5648477acda7","shortName":"rapid7","dateUpdated":"2026-09-29T10:39:07.525Z"},"title":"Velociraptor Prefetch parser out of bounds","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-20","description":"CWE-20 Improper input validation","type":"CWE"}]},{"descriptions":[{"lang":"en","cweId":"CWE-125","description":"CWE-125 Out-of-bounds read","type":"CWE"}]}],"affected":[{"vendor":"Rapid7","product":"Velociraptor","platforms":["Windows"],"packageName":"Velociraptor","repo":"https://github.com/Velocidex/velociraptor/","versions":[{"status":"affected","version":"0","lessThan":"0.77.3","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Velociraptor's prefetch library contains an out of bound vulnerability which may cause a crash when parsing certain malformed prefetch files.","supportingMedia":[{"type":"text/html","base64":false,"value":"Velociraptor's prefetch library contains an out of bound vulnerability which may cause a crash when parsing certain malformed prefetch files."}]}],"references":[{"url":"http://docs.velociraptor.app/announcements/advisories/cve-2026-7797/"},{"url":"https://github.com/Velocidex/go-prefetch/commit/4bae9796298011598d577b125e0b3db3ee03eb74"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseSeverity":"LOW","baseScore":3.6,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N"}}],"configurations":[{"lang":"en","value":"This issue is only exploitable on Windows clients or offline collectors.","supportingMedia":[{"type":"text/html","base64":false,"value":"This issue is only exploitable on Windows clients or offline collectors."}]}],"workarounds":[{"lang":"en","value":"This issue can result in a client crash. Usually clients will restart after a crash and resume normal operations. Users can collect the raw prefetch files without parsing them on the client for further analysis on the server.","supportingMedia":[{"type":"text/html","base64":false,"value":"This issue can result in a client crash. Usually clients will restart after a crash and resume normal operations. Users can collect the raw prefetch files without parsing them on the client for further analysis on the server. "}]}],"credits":[{"lang":"en","value":"Hamad Alghamdi","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-24T14:47:47.888267Z","id":"CVE-2026-77797","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2026-09-24T14:47:56.068Z"}}]}}