Low severity · published Aug 12, 2026
CVE-2026-64951
Velociraptor DoS triggered by Divide by Zero panic
3.5
CVSS
0.3%
EPSS
No
On KEV
Description
A rogue Velociraptor client can upload a malformed sparse file such that if the GUI attempts to expand the file, a panic occurs which may crash the server process.
The problem is a Divide by Zero bug in the ShouldPadFile() function.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VE
Velociraptor · Rapid7
before 0.77.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64951
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-64951
docs.velociraptor.app
http://docs.velociraptor.app/announcements/advisories/cve-2026-64951/
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