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VulnerabilityPublished

CVE-2026-64951: Rapid7 Velociraptor · Divide by Zero

Affects Rapid7 VelociraptorSource CVE Database V5

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Not known to be exploited · CVSS 3.5 Low : upgrade to 0.77.2 when convenient.

Data as of 10 Nov 2026, 23:24 UTC

CVSS 3.1 base score
3.5Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.77.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 10 Nov 2026.

What to do

Upgrade Rapid7 Velociraptor to 0.77.2.

Affected software

ProductAffectedFixed in
Rapid7VelociraptorAffected
  • <0.77.2
Fixed in
  • 0.77.2
GitHubVelociraptorpkg:github/VelociraptorOther threatsAffected
  • <0.77.2
Fixed in
  • 0.77.2

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Users should upgrade to Velociraptor version 0.77.2 or later once available to address this issue. Until then, monitoring and restricting uploads from untrusted clients may reduce risk.

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.

References

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