{"id":"ALSA-2026:65147","summary":"Important: microcode_ctl security, bug fix, and enhancement update","details":"The microcode_ctl packages provide microcode updates for Intel and AMD processors.  \n\nSecurity Fix(es):  \n\n  * kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling (CVE-2025-35973)\n  * kernel: microcode_ctl: Intel Xeon 6 Processors: Privilege escalation via improper memory range handling in SMM (CVE-2025-31936)\n\n\nBug Fix(es) and Enhancement(s):  \n\n  * [AlmaLinux 8] Update Intel CPU microcode to the latest version (JIRA:AlmaLinux-240770)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","modified":"2026-09-09T12:11:45.746669551Z","published":"2026-09-08T00:00:00Z","related":["CVE-2025-31936","CVE-2025-35973"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:65147"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-31936"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-35973"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2514104"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2514115"},{"type":"ADVISORY","url":"https://errata.almalinux.org/8/ALSA-2026-65147.html"}],"affected":[{"package":{"name":"microcode_ctl","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/microcode_ctl"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:20260812-1.el8_10"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2026:65147.json"}}],"schema_version":"1.9.0"}