CVE-2026-77797: CWE-20 Improper input validation in Rapid7 Velociraptor
Velociraptor's prefetch library contains an out of bound vulnerability which may cause a crash when parsing certain malformed prefetch files.
AI Analysis
Technical Summary
Rapid7 Velociraptor contains an input validation vulnerability (CWE-20) in its prefetch library that can cause an out-of-bounds access (CWE-125). This flaw may lead to a crash when the software parses specially crafted malformed prefetch files. The vulnerability affects all versions prior to 0.77.3. The CVSS 3.1 base score is 3.6, reflecting low severity with local attack vector, low complexity, no privileges required, user interaction required, and scope changed. No patch or vendor advisory details are provided in the input data.
Potential Impact
The vulnerability can cause application crashes due to out-of-bounds access when processing malformed prefetch files. There is no reported impact on confidentiality or availability beyond the crash. No known exploitation in the wild has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid processing untrusted or malformed prefetch files to mitigate crash risk.
CVE-2026-77797: CWE-20 Improper input validation in Rapid7 Velociraptor
Description
Velociraptor's prefetch library contains an out of bound vulnerability which may cause a crash when parsing certain malformed prefetch files.
CVSS v3.1
Score 3.6low
Affected software
Rapid7
Velociraptor
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Rapid7 Velociraptor contains an input validation vulnerability (CWE-20) in its prefetch library that can cause an out-of-bounds access (CWE-125). This flaw may lead to a crash when the software parses specially crafted malformed prefetch files. The vulnerability affects all versions prior to 0.77.3. The CVSS 3.1 base score is 3.6, reflecting low severity with local attack vector, low complexity, no privileges required, user interaction required, and scope changed. No patch or vendor advisory details are provided in the input data.
Potential Impact
The vulnerability can cause application crashes due to out-of-bounds access when processing malformed prefetch files. There is no reported impact on confidentiality or availability beyond the crash. No known exploitation in the wild has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid processing untrusted or malformed prefetch files to mitigate crash risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- rapid7
- Date Reserved
- 2026-08-21T13:21:29.921Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab52dc3f7a7c54106660574
Added to database: 09/24/2026, 14:03:47 UTC
Last enriched: 09/24/2026, 14:18:52 UTC
Last updated: 09/25/2026, 01:56:00 UTC
Views: 14
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