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CVE-2026-89169

live-boot ff8867c allows attackers to bypass the dm-verity-enforce-roothash-signature protection...

4.1 Medium

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

Attack profile

How easy it is to exploit

Attack vector
Physical
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

0.15%Unchanged since Sep 11, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.1

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

Record
CVE-2026-89169
CVSS 4.0
4.1 MediumCVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-347
Updated
2026-11-02
EUVDEUVD-2026-75949 4.1

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

Record
EUVD-2026-75949
CVSS 4.0
4.1 MediumCVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-7rv3-47f7-55fq 4.1

live-boot ff8867c allows attackers to bypass the dm-verity-enforce-roothash-signature protection...

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

Record
GHSA-7rv3-47f7-55fq
CVSS 4.0
4.1 MediumCVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/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
Weakness
CWE-347
Updated
2026-11-02
NVD 4.1

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

Record
CVE-2026-89169
CVSS 4.0
4.1 MediumCVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/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
Weakness
CWE-347
Updated
2026-11-02
OSVDEBIAN-CVE-2026-89169 4.1

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

Record
DEBIAN-CVE-2026-89169
CVSS 4.0
4.1 MediumCVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/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
Updated
2026-11-02
OSVUBUNTU-CVE-2026-89169 4.1

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

Record
UBUNTU-CVE-2026-89169
CVSS 4.0
4.1 MediumCVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
live-boot
Debian:12
 All versions, plus listed versions
1:202301311:20230131+deb12u11:202405251:20240525.11:202502251:202508151:20250815~deb13u1
 None known
live-boot
Debian:13
 All versions, plus listed versions
1:202502251:202508151:20250815~deb13u1
 None known
live-boot
Debian:14
 All versions, plus listed versions
1:202502251:202508151:20250815~deb13u1
 None known
live-boot
Ubuntu:16.04:LTS
 All versions, plus listed versions
5.0~a4-15.0~a5-15.0~a5-21:20151213
 None known
live-boot
Ubuntu:18.04:LTS
 All versions, plus listed versions
1:20170623
 None known
live-boot
Ubuntu:20.04:LTS
 All versions, plus listed versions
1:20190614
 None known
live-boot
Ubuntu:22.04:LTS
 All versions, plus listed versions
1:20210208
 None known
live-boot
Ubuntu:24.04:LTS
 All versions, plus listed versions
1:20230131
 None known
live-boot
Ubuntu:26.10
 All versions, plus listed versions
1:202508151:20250815ubuntu1
 None known
live-boot
Ubuntu:26.04:LTS
 All versions, plus listed versions
1:202502251:20250815
 None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-89169 is a medium vulnerability (CVSS 4.1) in Debian Live-boot, published September 11, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.15%, the 4th percentile. No source names a fixed version.

References

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