Vulnerability · Published Sep 11, 2026 · Assigned by mitre
CVE-2026-89169
Medium 4.1
In plain English
A medium-severity security flaw in live-boot from Debian. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).
Severity (CVSS 4.0)4.1Medium
Exploit odds (30 days)0.1%top 95.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
live-boot ff8867c allows attackers to bypass the dm-verity-enforce-roothash-signature protection mechanism when the .verity file is missing.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | live-boot | no fix listed | DEBIAN-CVE-2026-89169 |
| Debian:13 | live-boot | no fix listed | DEBIAN-CVE-2026-89169 |
| Debian:14 | live-boot | no fix listed | DEBIAN-CVE-2026-89169 |
| Ubuntu:22.04:LTS | live-boot | no fix listed | UBUNTU-CVE-2026-89169 |
| Ubuntu:24.04:LTS | live-boot | no fix listed | UBUNTU-CVE-2026-89169 |
| Ubuntu:26.04:LTS | live-boot | no fix listed | UBUNTU-CVE-2026-89169 |
| Ubuntu:26.10 | live-boot | no fix listed | UBUNTU-CVE-2026-89169 |
Affected products (as reported)
Weakness: CWE-347 · 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