CVE-2026-64951: CWE-369 Divide by zero in Rapid7 Velociraptor
CVE-2026-64951 is a low severity vulnerability in Rapid7 Velociraptor versions prior to 0.77.2. It involves a divide-by-zero error in the ShouldPadFile() function triggered when a rogue client uploads a malformed sparse file and the GUI attempts to expand it, causing a server process crash.
AI Analysis
Technical Summary
This vulnerability is a divide-by-zero bug (CWE-369) in the ShouldPadFile() function of Rapid7 Velociraptor. A malicious Velociraptor client can upload a specially crafted sparse file that, when expanded by the GUI, causes a panic leading to a crash of the server process. The issue affects Velociraptor versions before 0.77.2. The CVSS score is 3.5 (low severity), indicating limited impact primarily causing denial of service without confidentiality or integrity loss.
Potential Impact
The impact is limited to availability, as the vulnerability can cause the Velociraptor server process to crash when handling a malformed sparse file. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
No official patch or remediation level is currently provided. 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. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-64951: CWE-369 Divide by zero in Rapid7 Velociraptor
Description
CVE-2026-64951 is a low severity vulnerability in Rapid7 Velociraptor versions prior to 0.77.2. It involves a divide-by-zero error in the ShouldPadFile() function triggered when a rogue client uploads a malformed sparse file and the GUI attempts to expand it, causing a server process crash.
CVSS v3.1
Score 3.5low
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a divide-by-zero bug (CWE-369) in the ShouldPadFile() function of Rapid7 Velociraptor. A malicious Velociraptor client can upload a specially crafted sparse file that, when expanded by the GUI, causes a panic leading to a crash of the server process. The issue affects Velociraptor versions before 0.77.2. The CVSS score is 3.5 (low severity), indicating limited impact primarily causing denial of service without confidentiality or integrity loss.
Potential Impact
The impact is limited to availability, as the vulnerability can cause the Velociraptor server process to crash when handling a malformed sparse file. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
No official patch or remediation level is currently provided. 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. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- rapid7
- Date Reserved
- 2026-07-21T08:32:47.510Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7c46ebbf8831d5396148f5
Added to database: 08/12/2026, 10:11:55 UTC
Last enriched: 08/12/2026, 10:31:33 UTC
Last updated: 08/12/2026, 10:36:50 UTC
Views: 4
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