ALAS2023-2026-2080: microcode_ctl security update

ALAS2023-2026-2080, released August 31, 2026, fixes 8 CVEs in microcode_ctl (version 2:2.1-53.amzn2023.0.16). None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.5

Base score, 0 to 10

Highest EPSS

0.0011

1st percentile

Priority of the 8 CVEs

Patch now 0
                                Urgent 0
                                High 5
                                Routine 3

Fixed package versions

Product	Release	Fixed in
microcode_ctl	amzn 2023	2:2.1-53.amzn2023.0.16

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-20713	intel-microcode: Always-incorrect control flow implementation in some firmware for some Intel(R) Xeon(R) processors may allow an escal...	7.5	0.0010	None reported
High	CVE-2025-35973	microcode_ctl: The microcode_ctl packages provide microcode updates for Intel and AMD processors. Security Fix(es): * kernel: hype...	7.2	0.0010	None reported
High	CVE-2025-31936	microcode_ctl: The microcode_ctl packages provide microcode updates for Intel and AMD processors. Security Fix(es): * kernel: hype...	7.2	0.0010	None reported
High	CVE-2026-20716	intel-microcode: Improper access control for some Intel(R) Processors within Ring 3: User Applications may allow an escalation of priv...	7.0	0.0009	None reported
High	CVE-2025-31938	ucode-intel: This update for ucode-intel fixes the following issues: - Intel CPU Microcode was updated to the 20260812 release (b...	n/a	0.0009	None reported
Routine	CVE-2026-20917	ucode-intel: This update for ucode-intel fixes the following issues: - Intel CPU Microcode was updated to the 20260812 release (b...	5.3	0.0011	None reported
Routine	CVE-2026-20901	intel-microcode: Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege	5.3	0.0010	None reported
Routine	CVE-2026-20707	intel-microcode: Hardware logic contains race conditions for some 3rd Gen Intel(R) Xeon(R) Scalable Processors within Ring 3: unprivil...	5.6	0.0007	None reported

Also fixes CVE-2026-20713

ELSA-2026-500239
microcode_ctl on ol 10, ol 8, ol 9
SUSE-SU-2026:23602-1
ucode-intel on sles 16.0
OPENSUSE-SU-2026:21736-1
ucode-intel on opensuse-leap 16.0
SUSE-SU-2026:4025-1
ucode-intel on sles 15.6, sles 15.7
DEBIAN-CVE-2026-20713
intel-microcode on Debian 14

Vendor advisory

https://alas.aws.amazon.com/AL2023/ALAS-2026-2080.html

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