Velociraptor server crash via the SetPassword API

published 2026-08-11 2 mo ago modified 2026-10-23 16 d ago also EUVD-2026-56185

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits: 0; none known

Any authenticated Velociraptor user — including one holding only the readerrole — can terminate the entire server process with a single request, by calling SetPassword with a username that does not exist.

Patch / fix

fixed in 1 distros 1

Rapid7 Velociraptor 0.77.2

velociraptor openSUSE Tumbleweed 0.76.7.0.git145.b60ef1146-1.1

opensuse advisories openSUSE-SU-2026:12070-1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 mo ago (2026-08-11)

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% 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

CWE-476 NULL Pointer Dereference
CWE-703 Improper Check or Handling of Exceptional Conditions

References

docs.velociraptor.app /announcements/advisories/cve-2026-18638/

Sources

CVE List CVE-2026-18638
NVD CVE-2026-18638

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.

Summary