Linux · Amazon Linux · Security advisory · September 23, 2025

ALAS2023-2025-1209: microcode_ctl security update

ALAS2023-2025-1209, released September 23, 2025, fixes 5 CVEs in microcode_ctl (version 2:2.1-53.amzn2023.0.14). None of them is reported as exploited. Patch Radar priority: Routine.

Routine
CVEs closed
5
None rated Critical
Exploited
0
None reported
Highest CVSS
n/a
No CVSS score published
Highest EPSS
0.0020
9th percentile

Priority of the 5 CVEs

Patch now 0 Urgent 0 High 0 Routine 5

Fixed package versions

ProductReleaseFixed in
microcode_ctlamzn 20232:2.1-53.amzn2023.0.14

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Routine CVE-2025-22839 intel-microcode: Insufficient granularity of access control in the OOB-MSM for some Intel(R)Xeon(R) 6 Scalable processors may allow a...n/a 0.0020 None reported
Routine CVE-2025-22889 intel-microcode: Improper handling of overlap between protected memory ranges for someIntel(R) Xeon(R) 6 processor with Intel(R) TDX m...n/a 0.0016 None reported
Routine CVE-2025-26403 intel-microcode: Out-of-bounds write in the memory subsystem for some Intel(R) Xeon(R) 6processors when using Intel(R) SGX or Intel(R)...n/a 0.0015 None reported
Routine CVE-2025-32086 intel-microcode: Improperly implemented security check for standard in the DDRIOconfiguration for some Intel(R) Xeon(R) 6 Processors w...n/a 0.0015 None reported
Routine CVE-2025-22840 intel-microcode: Sequence of processor instructions leads to unexpected behavior for someIntel(R) Xeon(R) 6 Scalable processors may al...n/a 0.0015 None reported
Showing 1 to 5 of 5 1

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