UBUNTU-CVE-2026-0003

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Source

https://ubuntu.com/security/CVE-2026-0003

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0003.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-0003

Upstream

CVE-2026-0003

Published

2026-11-10T00:00:00Z

Modified

2026-11-13T21:03:20Z

Severity

5.9 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Use of a per-part static key in the ASP Bootloader could allow 5.9 an attacker to downgrade the Secu…

References

Affected packages

Ubuntu:24.04:LTS / amd64-microcode

Package

Name: amd64-microcode
Purl: pkg:deb/ubuntu/amd64-microcode?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.20230808.1.1ubuntu1

3.20231019.1ubuntu1

3.20231019.1ubuntu2

3.20231019.1ubuntu2.1

3.20250311.1ubuntu0.24.04.1

3.20251202.1ubuntu0.24.04.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "amd64-microcode",
            "binary_version": "3.20251202.1ubuntu0.24.04.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0003.json"

Ubuntu:26.10 / amd64-microcode

Package

Name: amd64-microcode
Purl: pkg:deb/ubuntu/amd64-microcode?arch=source&distro=stonking

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.20251202.1ubuntu2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "amd64-microcode",
            "binary_version": "3.20251202.1ubuntu2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0003.json"

Ubuntu:26.04:LTS / amd64-microcode

Package

Name: amd64-microcode
Purl: pkg:deb/ubuntu/amd64-microcode?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.20250708.1ubuntu1

3.20250708.1ubuntu2

3.20251202.1ubuntu1

3.20251202.1ubuntu2

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "amd64-microcode",
            "binary_version": "3.20251202.1ubuntu2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-0003.json"