CVE-2026-107634

medium

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.

References

https://www.vulncheck.com/advisories/dislocker-through-0.7.3-heap-out-of-bounds-read-via-bitlocker-metadata-dataset-size

https://github.com/Aorimn/dislocker/commit/9158e9e41dd669b360cbc53cc18ccae729b67b48

https://github.com/Aorimn/dislocker/blob/v0.7.3/src/metadata/metadata.c#L764-L790

https://github.com/Aorimn/dislocker/blob/v0.7.3/src/metadata/datums.c#L589-L640

https://github.com/Aorimn/dislocker

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-95021

Details

Source: Mitre, NVD

Published: 2026-10-08

Updated: 2026-10-08

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 6.1

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00129