CVE-2026-77797: Rapid7 Velociraptor · Improper Input Validation
Affects Rapid7 VelociraptorSource CVE Database V5
Not known to be exploited · CVSS 3.6 Low : upgrade to 0.77.3 when convenient.
Data as of 6 Nov 2026, 23:24 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.77.3
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.
What to do
Upgrade Rapid7 Velociraptor to 0.77.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Rapid7Velociraptor | Affected
| Fixed in
|
GitHubVelociraptorpkg:github/VelociraptorOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until then, avoid processing untrusted or malformed prefetch files locally.
Description
Velociraptor's prefetch library contains an out of bound vulnerability which may cause a crash when parsing certain malformed prefetch files.