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Ubuntu 25.10 Intel Microcode Important Privilege Escalation USN-8068-1

ubuntu
Calendar Grey March 3, 2026
Dist Ubuntu Esm H88
Admin privileges could be escalated due to an issue in Intel microcode affecting Ubuntu systems. Update to fix it now.
The system could be made to run programs as an administrator.

Summary

The system could be made to run programs as an administrator.

Software Description:

- intel-microcode: Processor microcode for Intel CPUs

Details:

Sergiu Ghetie discovered that some Intel� processors did not properly

handle values in the microcode flow. A local authenticated user could

potentially use this issue to escalate their privileges.

Topics%20covered

Topics Covered

security advisory update privilege escalation Ubuntu important intel microcode

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.10
  intel-microcode                 3.20260210.0ubuntu0.25.10.1

Ubuntu 24.04 LTS
  intel-microcode                 3.20260210.0ubuntu0.24.04.1

Ubuntu 22.04 LTS
  intel-microcode                 3.20260210.0ubuntu0.22.04.1

Ubuntu 20.04 LTS
  intel-microcode                 3.20260210.0ubuntu0.20.04.1+esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  intel-microcode                 3.20260210.0ubuntu0.18.04.1+esm1
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  intel-microcode                 3.20260210.0ubuntu0.16.04.1+esm1
                                  Available with Ubuntu Pro

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-8068-1

CVE-2025-31648

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8068-1

Topics%20covered

Topics Covered

security advisory update privilege escalation Ubuntu important intel microcode

Package Information

https://launchpad.net/ubuntu/+source/intel-microcode/3.20260210.0ubuntu0.25.10.1
https://launchpad.net/ubuntu/+source/intel-microcode/3.20260210.0ubuntu0.24.04.1
https://launchpad.net/ubuntu/+source/intel-microcode/3.20260210.0ubuntu0.22.04.1

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