UBUNTU-CVE-2025-35973

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Source
https://ubuntu.com/security/CVE-2025-35973
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35973.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-35973
Upstream
  • CVE-2025-35973
Published
2026-08-13T00:00:00Z
Modified
2026-08-13T19:30:09.950127825Z
Severity
  • 4.5 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Improper handling of values for some Intel(R) Processors within Ring 0: Kernel, Hypervisor and Bare Metal OS may allow an escalation of privilege. Authorized adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and require no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.

References

Affected packages

Ubuntu:22.04:LTS
intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/ubuntu/intel-microcode?arch=source&distro=jammy

Affected ranges

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

Affected versions

3.*
3.20210608.2ubuntu1
3.20220510.0ubuntu0.22.04.1
3.20220809.0ubuntu0.22.04.1
3.20230214.0ubuntu0.22.04.1
3.20230808.0ubuntu0.22.04.1
3.20231114.0ubuntu0.22.04.1
3.20240514.0ubuntu0.22.04.1
3.20240813.0ubuntu0.22.04.2
3.20240910.0ubuntu0.22.04.1
3.20241112.0ubuntu0.22.04.1
3.20250211.0ubuntu0.22.04.1
3.20250512.0ubuntu0.22.04.1
3.20250812.0ubuntu0.22.04.1
3.20260210.0ubuntu0.22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.20260210.0ubuntu0.22.04.1",
            "binary_name": "intel-microcode"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35973.json"
Ubuntu:24.04:LTS
intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/ubuntu/intel-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
3.20231114.0ubuntu1
3.20231114.1
3.20240312.1
3.20240312.1build1
3.20240514.0ubuntu0.24.04.1
3.20240813.0ubuntu0.24.04.2
3.20240910.0ubuntu0.24.04.1
3.20241112.0ubuntu0.24.04.1
3.20250211.0ubuntu0.24.04.1
3.20250512.0ubuntu0.24.04.1
3.20250812.0ubuntu0.24.04.1
3.20260210.0ubuntu0.24.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.20260210.0ubuntu0.24.04.1",
            "binary_name": "intel-microcode"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35973.json"
Ubuntu:26.04:LTS
intel-microcode

Package

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

Affected ranges

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

Affected versions

3.*
3.20250512.1ubuntu1
3.20250812.1ubuntu1
3.20260210.1ubuntu1
3.20260210.1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.20260210.1ubuntu2",
            "binary_name": "intel-microcode"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35973.json"
Ubuntu:Pro:14.04:LTS
intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/ubuntu/intel-microcode?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

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

Affected versions

1.*
1.20130906.1ubuntu2
1.20130906.1ubuntu3
2.*
2.20140122.1
2.20140430.1ubuntu1
2.20140624-t-1ubuntu2
3.*
3.20180108.0~ubuntu14.04.2
3.20180108.0+really20170707ubuntu14.04.1
3.20180312.0~ubuntu14.04.1
3.20180425.1~ubuntu0.14.04.1
3.20180425.1~ubuntu0.14.04.2
3.20180807a.0ubuntu0.14.04.1
3.20190514.0ubuntu0.14.04.1
3.20190514.0ubuntu0.14.04.2
3.20190618.0ubuntu0.14.04.1
3.20191112-0ubuntu0.14.04.2
3.20191115.1ubuntu0.14.04.1
3.20191115.1ubuntu0.14.04.2
3.20200609.0ubuntu0.14.04.0
3.20200609.0ubuntu0.14.04.1
3.20201110.0ubuntu0.14.04.1
3.20201110.0ubuntu0.14.04.2
3.20210608.0ubuntu0.14.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.20210608.0ubuntu0.14.04.1+esm1",
            "binary_name": "intel-microcode"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35973.json"
Ubuntu:Pro:16.04:LTS
intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/ubuntu/intel-microcode?arch=source&distro=esm-infra%2Fxenial

Affected ranges

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

Affected versions

3.*
3.20150121.1
3.20151106.1
3.20170707.1~ubuntu16.04.0
3.20180108.0~ubuntu16.04.2
3.20180108.0+really20170707ubuntu16.04.1
3.20180312.0~ubuntu16.04.1
3.20180425.1~ubuntu0.16.04.1
3.20180425.1~ubuntu0.16.04.2
3.20180807a.0ubuntu0.16.04.1
3.20190514.0ubuntu0.16.04.1
3.20190514.0ubuntu0.16.04.2
3.20190618.0ubuntu0.16.04.1
3.20191112-0ubuntu0.16.04.2
3.20191115.1ubuntu0.16.04.1
3.20191115.1ubuntu0.16.04.2
3.20200609.0ubuntu0.16.04.0
3.20200609.0ubuntu0.16.04.1
3.20201110.0ubuntu0.16.04.1
3.20201110.0ubuntu0.16.04.2
3.20210216.0ubuntu0.16.04.1
3.20210608.0ubuntu0.16.04.1+esm1
3.20220510.0ubuntu0.16.04.1+esm1
3.20230214.0ubuntu0.16.04.1+esm1
3.20230808.0ubuntu0.16.04.1+esm1
3.20231114.0ubuntu0.16.04.1+esm1
3.20240514.0ubuntu0.16.04.1+esm1
3.20240813.0ubuntu0.16.04.1+esm2
3.20240910.0ubuntu0.16.04.1+esm1
3.20241112.0ubuntu0.16.04.1+esm1
3.20250211.0ubuntu0.16.04.1+esm1
3.20250512.0ubuntu0.16.04.1+esm1
3.20250812.0ubuntu0.16.04.1+esm1
3.20260210.0ubuntu0.16.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.20260210.0ubuntu0.16.04.1+esm1",
            "binary_name": "intel-microcode"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35973.json"
Ubuntu:Pro:18.04:LTS
intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/ubuntu/intel-microcode?arch=source&distro=esm-infra%2Fbionic

Affected ranges

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

Affected versions

3.*
3.20170707.1
3.20171117.1
3.20180108.1
3.20180108.1+really20171117.1
3.20180312.0~ubuntu18.04.1
3.20180425.1~ubuntu0.18.04.1
3.20180425.1~ubuntu0.18.04.2
3.20180807a.0ubuntu0.18.04.1
3.20190514.0ubuntu0.18.04.2
3.20190514.0ubuntu0.18.04.3
3.20190618.0ubuntu0.18.04.1
3.20191112-0ubuntu0.18.04.2
3.20191115.1ubuntu0.18.04.1
3.20191115.1ubuntu0.18.04.2
3.20200609.0ubuntu0.18.04.0
3.20200609.0ubuntu0.18.04.1
3.20201110.0ubuntu0.18.04.1
3.20201110.0ubuntu0.18.04.2
3.20210216.0ubuntu0.18.04.1
3.20210608.0ubuntu0.18.04.1
3.20220510.0ubuntu0.18.04.1
3.20220809.0ubuntu0.18.04.1
3.20230214.0ubuntu0.18.04.1
3.20230808.0ubuntu0.18.04.1+esm1
3.20231114.0ubuntu0.18.04.1+esm1
3.20240514.0ubuntu0.18.04.1+esm1
3.20240813.0ubuntu0.18.04.1+esm2
3.20240910.0ubuntu0.18.04.1+esm1
3.20241112.0ubuntu0.18.04.1+esm1
3.20250211.0ubuntu0.18.04.1+esm1
3.20250512.0ubuntu0.18.04.1+esm1
3.20250812.0ubuntu0.18.04.1+esm1
3.20260210.0ubuntu0.18.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.20260210.0ubuntu0.18.04.1+esm1",
            "binary_name": "intel-microcode"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35973.json"
Ubuntu:Pro:20.04:LTS
intel-microcode

Package

Name
intel-microcode
Purl
pkg:deb/ubuntu/intel-microcode?arch=source&distro=esm-infra%2Ffocal

Affected ranges

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

Affected versions

3.*
3.20190918.1ubuntu1
3.20191115.1ubuntu1
3.20191115.1ubuntu2
3.20191115.1ubuntu3
3.20200609.0ubuntu0.20.04.0
3.20200609.0ubuntu0.20.04.1
3.20200609.0ubuntu0.20.04.2
3.20201110.0ubuntu0.20.04.1
3.20201110.0ubuntu0.20.04.2
3.20210216.0ubuntu0.20.04.1
3.20210608.0ubuntu0.20.04.1
3.20220510.0ubuntu0.20.04.1
3.20220809.0ubuntu0.20.04.1
3.20230214.0ubuntu0.20.04.1
3.20230808.0ubuntu0.20.04.1
3.20231114.0ubuntu0.20.04.1
3.20240514.0ubuntu0.20.04.1
3.20240813.0ubuntu0.20.04.2
3.20240910.0ubuntu0.20.04.1
3.20241112.0ubuntu0.20.04.1
3.20250211.0ubuntu0.20.04.1
3.20250512.0ubuntu0.20.04.1
3.20250812.0ubuntu0.20.04.1+esm1
3.20260210.0ubuntu0.20.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.20260210.0ubuntu0.20.04.1+esm1",
            "binary_name": "intel-microcode"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-35973.json"