live-boot ff8867c allows attackers to bypass the dm-verity-enforce-roothash-signature protection mechanism when the .verity file is missing.

Attack Vector Physical

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00109.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Debian live-boot unknown
Version Status Constraints
ff8867c4e2d62e497cb895b15b7d6d518d5adff1 affected —

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1146422 cve-icon cve-icon
https://salsa.debian.org/live-team/live-boot/-/blob/ff8867c4e2d62e497cb895b15b7d6d518d5adff1/components/9990-overlay.sh#L112-114 cve-icon cve-icon
History

Sun, 13 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Debian
Debian live-boot
Vendors & Products Debian
Debian live-boot

Fri, 11 Sep 2026 06:45:00 +0000

Type Values Removed Values Added
Title Bypass of dm-verity enforcement when .verity file missing in Debian live-boot

Fri, 11 Sep 2026 05:00:00 +0000

Type Values Removed Values Added
Description live-boot ff8867c allows attackers to bypass the dm-verity-enforce-roothash-signature protection mechanism when the .verity file is missing.
Weaknesses CWE-347
References
Metrics cvssV4_0

{'score': 4.1, 'vector': 'CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-11T15:57:27.751Z

Reserved: 2026-09-11T04:44:26.012Z

Link: CVE-2026-89169

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-11T05:16:38.840

Modified: 2026-09-11T16:17:49.670

Link: CVE-2026-89169

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-13T19:56:57Z

Weaknesses