CVE catalog

CVE-2026-107635

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

[CVE catalog]

Severity: Medium · CVSS 6.9CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Oct 8, 2026, 2:10:33 PM UTC
Updated: Oct 8, 2026, 3:17:46 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.13% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	dislocker	sid	`0.7.4-1`	fixed
Debian	dislocker	forky	`0.7.3+git20250907-1`	vulnerable
Debian	dislocker	trixie	`0.7.3+git20240607-3`	vulnerable
Debian	dislocker	bookworm	`0.7.3-3`	vulnerable
Ubuntu	dislocker	18.04	`0.6.1-7`	vulnerable
Ubuntu	dislocker	18.04	`0.7.1-3`	vulnerable
Ubuntu	dislocker	18.04	`0.7.1-3build1`	vulnerable
Ubuntu	dislocker	18.04	`0.7.1-3build2`	vulnerable
Ubuntu	dislocker	18.04	`0.7.1-3build3`	vulnerable
Ubuntu	dislocker	20.04	`0.7.1-4build1`	vulnerable
Ubuntu	dislocker	20.04	`0.7.1-5`	vulnerable
Ubuntu	dislocker	22.04	`0.7.3-2`	vulnerable
Ubuntu	dislocker	22.04	`0.7.3-2ubuntu1`	vulnerable
Ubuntu	dislocker	22.04	`0.7.3-2ubuntu2`	vulnerable
Ubuntu	dislocker	24.04	`0.7.3-2.1ubuntu2`	vulnerable
Ubuntu	dislocker	24.04	`0.7.3-3`	vulnerable
Ubuntu	dislocker	24.04	`0.7.3-3.1`	vulnerable
Ubuntu	dislocker	24.04	`0.7.3-3.1build1`	vulnerable
Ubuntu	dislocker	24.04	`0.7.3-3.1build2`	vulnerable
Ubuntu	dislocker	26.10	`0.7.3+git20250907-1`	vulnerable
Ubuntu	dislocker	26.04	`0.7.3+git20240607-3build1`	vulnerable
Ubuntu	dislocker	26.04	`0.7.3+git20250907-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	dislocker	source	sid	`0.7.4-1`	unimportant	Not reported	[1150456]
Debian	dislocker	source	forky	`(unfixed)`	unimportant	Not reported	[1150456]
Debian	dislocker	source	trixie	`(unfixed)`	unimportant	Not reported	[1150456]
Debian	dislocker	source	bookworm	`(unfixed)`	unimportant	Not reported	[1150456]

[Debian bug #1150456]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[dislocker]Affected
Details (2)
- 0.7.3-3 · amd64 · bookworm
  Affected
  nvd · dislocker · debian · bookworm; nvd · dislocker · debian · 12
- 0.7.3-3 · arm64 · bookworm
  Affected
  nvd · dislocker · debian · bookworm; nvd · dislocker · debian · 12
[libdislocker0.7]Affected
Source package: [dislocker]
Details (2)
- 0.7.3-3 · amd64 · bookworm
  Affected
  nvd · dislocker · debian · bookworm; nvd · dislocker · debian · 12
- 0.7.3-3 · arm64 · bookworm
  Affected
  nvd · dislocker · debian · bookworm; nvd · dislocker · debian · 12
[libdislocker0-dev]Affected
Source package: [dislocker]
Details (2)
- 0.7.3-3 · amd64 · bookworm
  Affected
  nvd · dislocker · debian · bookworm; nvd · dislocker · debian · 12
- 0.7.3-3 · arm64 · bookworm
  Affected
  nvd · dislocker · debian · bookworm; nvd · dislocker · debian · 12

[Debian 13 (Trixie)]

[dislocker]Affected
Source package: [dislocker]
Details (2)
- 0.7.3+git20240607-3+b1 · amd64 · trixie
  Affected
  nvd · dislocker · debian · 13
- 0.7.3+git20240607-3+b1 · arm64 · trixie
  Affected
  nvd · dislocker · debian · 13
[libdislocker0.7t64]Affected
Source package: [dislocker]
Details (2)
- 0.7.3+git20240607-3+b1 · amd64 · trixie
  Affected
  nvd · dislocker · debian · 13
- 0.7.3+git20240607-3+b1 · arm64 · trixie
  Affected
  nvd · dislocker · debian · 13
[libdislocker0-dev]Affected
Source package: [dislocker]
Details (2)
- 0.7.3+git20240607-3+b1 · amd64 · trixie
  Affected
  nvd · dislocker · debian · 13
- 0.7.3+git20240607-3+b1 · arm64 · trixie
  Affected
  nvd · dislocker · debian · 13

Observed: Oct 25, 2026, 6:48:35 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]