Velociraptor Prefetch parser out of bounds

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-77797
StatePUBLISHED
Assignerrapid7
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-24 14:18:17 UTC
Updated2026-09-24 21:00:46 UTC
DescriptionVelociraptor's prefetch library contains an out of bound vulnerability which may cause a crash when parsing certain malformed prefetch files.

Risk And Classification

Primary CVSS: v3.1 3.6 LOW from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

Problem Types: CWE-20 | CWE-125 | CWE-20 CWE-20 Improper input validation | CWE-125 CWE-125 Out-of-bounds read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary3.6LOWCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
3.1CNACVSS3.6LOWCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Rapid7 Velociraptor affected 0.77.3 semver Windows

References

ReferenceSourceLinkTags
github.com/Velocidex/go-prefetch/commit/4bae9796298011598d577b125e0b3db3... [email protected] github.com
docs.velociraptor.app/announcements/advisories/cve-2026-7797 [email protected] docs.velociraptor.app
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Yuval Miller and Leon Kayaliev (en)

Additional Advisory Data

Workarounds

CNA: 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.

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