CVE-2026-107634 Dislocker through 0.7.3 Heap Out-of-Bounds Read via BitLocker Metadata Dataset Size
Attackers can cause crashes or disclose heap memory by crafting malicious BitLocker volume images processed by the Dislocker tool.
- 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-2026-107634?
CVE-2026-107634 is a medium-severity memory corruption 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 a heap out-of-bounds read vulnerability in get_dataset() and get_next_datum() that never validate dataset and datum sizes against the metadata allocation. Attackers can craft a BitLocker volume image with inflated dataset or datum sizes that, when opened or mounted, crashes dislocker or discloses adjacent heap memory.
Weakness: CWE-125
Which versions are affected by CVE-2026-107634?
How do I fix CVE-2026-107634?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-107634 being exploited?
There is no known exploitation of CVE-2026-107634 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-107634, GHSA-gj99-98mp-m7r6, UBUNTU-CVE-2026-107634.