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Fencer Vulns
medium 6.5

CVE-2026-77798 json

Velociraptor Authenticated Denial of Service

published 2026-09-24 45 d ago modified 2026-09-24 45 d ago also EUVD-2026-85882

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits
0
none known

Summary

Velociraptor contains a deadlock condition that may be triggered by authenticated users. The issue stems from a lock management bug in the user management module.

Patch / fix

  • Rapid7 Velociraptor 0.77.2

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
45 d ago

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Rapid7 Velociraptor

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.