CVE-2026-17535: Velociraptor Multiple Crashes in NTFS Parser when applied to invalid NTFS Volumes

Published on 2026-07-31 Vulnogram
CVSS · MEDIUM · 6.2 ⁄10 · CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Scoring scenario: GENERAL
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
Description

Velociraptor's NTFS parsing library mishandles several out of bound and memory exhaustion bugs which may be triggered by maliciously crafted NTFS images.

Typically Velociraptor's NTFS parser is used on live NTFS filesystems, limiting the opportunity of attackers corrupting the filesystem. However, in some applications (e.g. dead disk forensics) Velociraptor may be used on untrusted NTFS image files. 
If an attacker is able to inject maliciously corrupted NTFS Volumes they can cause a crash and a Denial of Service.

Problem CWE-125 Out-of-bounds read
Problem CWE-789 Memory allocation with excessive size value
Problem CWE-369 Divide by zero
Required configuration for exposure This vulnerability is exploitable when ingesting untrusted NTFS volumes and using Velociraptor to parse these in dead disk mode.
Workarounds The vulnerability results in a crash or memory exhaustion. 
ProductAffected
Rapid7 Velociraptor on Linux, Windows
source repo
Default status is unaffected 		before 0.77.2
Credits
  • Kris Kennaway (Datadog)
    •
References