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.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Aorimn dislocker unaffected
Version Status Constraints
0 affected ≤ 0.7.3

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Aorimn/dislocker cve-icon cve-icon
https://github.com/Aorimn/dislocker/blob/v0.7.3/src/metadata/fvek.c#L90-L105 cve-icon cve-icon
https://github.com/Aorimn/dislocker/blob/v0.7.3/src/metadata/vmk.c#L146-L180 cve-icon cve-icon
https://github.com/Aorimn/dislocker/commit/0706462db88efe8df88150e4c3e4332b808f4581 cve-icon cve-icon
https://www.vulncheck.com/advisories/dislocker-through-0.7.3-out-of-bounds-heap-read-via-vmk-fvek-datum-size-underflow cve-icon cve-icon
History

Thu, 08 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
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.
Title Dislocker through 0.7.3 Out-of-Bounds Heap Read via VMK/FVEK Datum Size Underflow
Weaknesses CWE-191
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-08T16:05:30.813Z

Reserved: 2026-10-08T14:05:59.396Z

Link: CVE-2026-107635

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-08T15:17:46.340

Modified: 2026-10-08T16:17:04.623

Link: CVE-2026-107635

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T16:15:14Z

Weaknesses