CVE-2026-107635 Dislocker through 0.7.3 Out-of-Bounds Heap Read via VMK/FVEK Datum Size Underflow
Attackers can cause a crash in Dislocker by providing a malicious BitLocker image with an undersized datum, leading to an out-of-bounds heap read.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-107635?
CVE-2026-107635 is a medium-severity vulnerability in Aorimn dislocker, published on 8 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-191
Which versions are affected by CVE-2026-107635?
How do I fix CVE-2026-107635?
Apply the vendor's patch.
Is CVE-2026-107635 being exploited?
There is no known exploitation of CVE-2026-107635 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-107635, GHSA-v459-vrm9-x34f, UBUNTU-CVE-2026-107635.