CVE-2026-107635

What it is

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.

At a glance

Exploitability

Can be exploited locally on the machine without logging in, but needs a user to act. High risk of service disruption.

Exploit odds

0.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-10-08 15:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-16 12:16 UTC Last updatedMost recent change to the record

Details

Published

2026-10-08 15:17 UTC

Last modified

2026-10-16 12:16 UTC

Exploit probability

0.1% · EPSS, next 30 days

Weakness

CWE-191

Record status

Awaiting Analysis

Attack profile CVSS 4.0 · 6.9

Attack vector

Local

Complexity

Low

Attack requirements

None

Privileges needed

None

User interaction

Passive

Confidentiality

Low

Integrity

None

Availability

High