UBUNTU-CVE-2025-29946

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Source
https://ubuntu.com/security/CVE-2025-29946
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-29946.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-29946
Upstream
  • CVE-2025-29946
Published
2026-02-10T20:16:00Z
Modified
2026-05-20T16:21:02.458696065Z
Severity
  • 4.5 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Insufficient or Incomplete Data Removal in Hardware Component in SEV firmware doesn't fully flush IOMMU. This can potentially lead to a loss of confidentiality and integrity in guest memory.

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
0Unknown 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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.20250311.1ubuntu0.24.04.1",
            "binary_name": "amd64-microcode"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-29946.json"

Ubuntu:25.10 / amd64-microcode

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.20240820.1ubuntu1
3.20250311.1ubuntu1
3.20250708.1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.20250708.1ubuntu1",
            "binary_name": "amd64-microcode"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-29946.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
0Unknown 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_version": "3.20251202.1ubuntu2",
            "binary_name": "amd64-microcode"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-29946.json"