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CVE-2026-64951— Velociraptor DoS triggered by Divide by Zero panic

Quick assessment

Affected
Rapid7 Velociraptor
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rapid7 Velociraptor是美国Rapid7公司开源的一款终端安全与响应工具。 Rapid7 velociraptor 0.77.2之前版本存在数字错误漏洞，该漏洞源于ShouldPadFile()函数存在除零错误，恶意客户端上传畸形稀疏文件后，当GUI尝试展开该文件时可能导致崩溃，使服务器进程崩溃。

CVSS 3.5 · Low EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
Rapid7 Velociraptor < 0.77.2 affected
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I. Basic Information for CVE-2026-64951

Vulnerability Information
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Vulnerability Title
Velociraptor DoS triggered by Divide by Zero panic
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
除零错误
Source: CVE Program / CVE List V5
Vulnerability Title
Rapid7 velociraptor 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rapid7 Velociraptor是美国Rapid7公司开源的一款终端安全与响应工具。 Rapid7 velociraptor 0.77.2之前版本存在数字错误漏洞，该漏洞源于ShouldPadFile()函数存在除零错误，恶意客户端上传畸形稀疏文件后，当GUI尝试展开该文件时可能导致崩溃，使服务器进程崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Rapid7 Velociraptor 0 ~ 0.77.2 -

II. Public POCs for CVE-2026-64951

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III. Intelligence Information for CVE-2026-64951

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Vendor Advisories for CVE-2026-64951 (1)

Same Patch Batch · Rapid7 · 2026-08-12 · 5 CVEs total

CVE-2026-64954 8.2 HIGH Velociraptor collect_client() Permissions Bypass
CVE-2026-18652 6.5 MEDIUM Velociraptor STACK Type Download Path Bypasses Denied Prefix Check
CVE-2026-64952 6.5 MEDIUM Velociraptor Hunt Deletion With Insufficient Permission Check
CVE-2026-64955 6.1 MEDIUM Velociraptor CSV Formula Injection in Export Pipeline

IV. Related Vulnerabilities

Same product: Velociraptor
Same vendor: Rapid7
Same weakness: CWE-369

V. Comments for CVE-2026-64951

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