{"api_version":"1","generated_at":"2026-09-24T21:58:11+00:00","cve":"CVE-2026-77797","urls":{"html":"https://cve.report/CVE-2026-77797","api":"https://cve.report/api/cve/CVE-2026-77797.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-77797","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-77797"},"summary":{"title":"Velociraptor Prefetch parser out of bounds","description":"Velociraptor's prefetch library contains an out of bound vulnerability which may cause a crash when parsing certain malformed prefetch files.","state":"PUBLISHED","assigner":"rapid7","published_at":"2026-09-24 14:18:17","updated_at":"2026-09-24 21:00:46"},"problem_types":["CWE-20","CWE-125","CWE-20 CWE-20 Improper input validation","CWE-125 CWE-125 Out-of-bounds read"],"metrics":[{"version":"3.1","source":"cve@rapid7.com","type":"Secondary","score":"3.6","severity":"LOW","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","baseScore":3.6,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"3.6","severity":"LOW","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","data":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":3.6,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","version":"3.1"}}],"references":[{"url":"https://github.com/Velocidex/go-prefetch/commit/4bae9796298011598d577b125e0b3db3ee03eb74","name":"https://github.com/Velocidex/go-prefetch/commit/4bae9796298011598d577b125e0b3db3ee03eb74","refsource":"cve@rapid7.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"http://docs.velociraptor.app/announcements/advisories/cve-2026-7797/","name":"http://docs.velociraptor.app/announcements/advisories/cve-2026-7797/","refsource":"cve@rapid7.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-77797","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77797","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Rapid7","product":"Velociraptor","version":"affected 0.77.3 semver","platforms":["Windows"]}],"timeline":[],"solutions":[],"workarounds":[{"source":"CNA","title":"","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.","time":"","lang":"en"}],"exploits":[],"credits":[{"source":"CNA","value":"Yuval Miller and Leon Kayaliev","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-77797","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-09-24T14:47:47.888267Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-09-24T14:47:56.068Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"Velociraptor","platforms":["Windows"],"product":"Velociraptor","repo":"https://github.com/Velocidex/velociraptor/","vendor":"Rapid7","versions":[{"lessThan":"0.77.3","status":"affected","version":"0","versionType":"semver"}]}],"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"This issue is only exploitable on Windows clients or offline collectors."}],"value":"This issue is only exploitable on Windows clients or offline collectors."}],"credits":[{"lang":"en","type":"finder","value":"Yuval Miller and Leon Kayaliev"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Velociraptor's prefetch library contains an out of bound vulnerability which may cause a crash when parsing certain malformed prefetch files."}],"value":"Velociraptor's prefetch library contains an out of bound vulnerability which may cause a crash when parsing certain malformed prefetch files."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":3.6,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper input validation","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds read","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-09-24T13:49:41.379Z","orgId":"9974b330-7714-4307-a722-5648477acda7","shortName":"rapid7"},"references":[{"url":"http://docs.velociraptor.app/announcements/advisories/cve-2026-7797/"},{"url":"https://github.com/Velocidex/go-prefetch/commit/4bae9796298011598d577b125e0b3db3ee03eb74"}],"source":{"discovery":"EXTERNAL"},"title":"Velociraptor Prefetch parser out of bounds","workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","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. "}],"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."}],"x_generator":{"engine":"Vulnogram 1.0.4"}}},"cveMetadata":{"assignerOrgId":"9974b330-7714-4307-a722-5648477acda7","assignerShortName":"rapid7","cveId":"CVE-2026-77797","datePublished":"2026-09-24T13:49:41.379Z","dateReserved":"2026-08-21T13:21:29.921Z","dateUpdated":"2026-09-24T14:47:56.068Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-24 14:18:17","lastModifiedDate":"2026-09-24 21:00:46","problem_types":["CWE-20","CWE-125","CWE-20 CWE-20 Improper input validation","CWE-125 CWE-125 Out-of-bounds read"],"metrics":{"cvssMetricV31":[{"source":"cve@rapid7.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","baseScore":3.6,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":1.8,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-09-24T14:47:47.888267Z","id":"CVE-2026-77797","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"77797","Ordinal":"1","Title":"Velociraptor Prefetch parser out of bounds","CVE":"CVE-2026-77797","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"77797","Ordinal":"1","NoteData":"Velociraptor's prefetch library contains an out of bound vulnerability which may cause a crash when parsing certain malformed prefetch files.","Type":"Description","Title":"Velociraptor Prefetch parser out of bounds"}]}}}