CVE-2026-107635: Integer Underflow (Wrap or Wraparound) in Aorimn dislocker
Description
Dislocker through 0.7.3 contains an integer underflow vulnerability in get_vmk() and get_fvek() that allows attackers to trigger out-of-bounds heap reads via crafted datum sizes. Attackers can supply a malicious BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header, causing hexdump() to over-read and crash dislocker.
CVSS v4.0
Score 6.8medium
Affected software
Aorimn
dislocker
pkg:github/aorimn/dislockerRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-107635 is an integer underflow vulnerability in Aorimn's dislocker software (up to version 0.7.3). The issue occurs in the get_vmk() and get_fvek() functions when processing a crafted BitLocker volume image with a datum_size smaller than the 36-byte AES-CCM header. This causes the hexdump() function to perform out-of-bounds heap reads, potentially crashing the application.
Potential Impact
An attacker can supply a malicious BitLocker volume image that triggers out-of-bounds heap reads, leading to application crashes. There is no indication of privilege escalation or remote code execution. The impact is denial of service due to crash.
Mitigation Recommendations
No patch or official fix information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted or malicious BitLocker volume images with dislocker.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-08T14:05:59.396Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac7a6672cdf04f6561df63a
Added to database: 10/08/2026, 14:19:19 UTC
Last enriched: 10/08/2026, 14:35:20 UTC
Last updated: 10/08/2026, 17:36:25 UTC
Views: 11
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