{ "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": "2026-09-24T14:47:56.068Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "9974b330-7714-4307-a722-5648477acda7", "shortName": "rapid7", "dateUpdated": "2026-09-24T13:49:41.379Z" }, "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": "Yuval Miller and Leon Kayaliev", "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" } } ] } }