{"id":"CLSA-2026-1789117244","summary":"microcode_ctl: Fix of CVE-2025-35973","details":"- Update Intel CPU microcode to 20260812 release, addresses\n  CVE-2025-35973 (INTEL-SA-01428); the release also carries INTEL-SA-01379,\n  -01404, -01423, -01435, -01441, -01442 and -01443. 20260812 withdraws the\n  06-aa-04 revision 0x2a that 20260811 shipped, so MTL C0 (cpuid:A06A4) gets\n  0x28:\n  - Addition of cpuid:806F8/0x10 microcode at revision 0x2c000435;\n  - Addition of cpuid:806F8/0x87 microcode at revision 0x2b000685;\n  - Addition of cpuid:90672/0x07 microcode at revision 0x3e;\n  - Addition of cpuid:906A3/0x80 microcode at revision 0x43b;\n  - Addition of cpuid:B0671/0x36 microcode at revision 0x137;\n  - Addition of cpuid:B0674/0x36 microcode at revision 0x137;\n  - Addition of cpuid:B06A2/0xe0 microcode at revision 0x6134;\n  - Addition of cpuid:C0662/0x82 microcode at revision 0x122;\n  - Addition of cpuid:C06C1/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06C2/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06C3/0x94 microcode at revision 0x11c;\n  - Addition of cpuid:C06F2/0x87 microcode at revision 0x210002f4;\n  - Addition of cpuid:D0650/0xc0 microcode at revision 0xc;\n  - Addition of cpuid:D0651/0xc0 microcode at revision 0xc;\n  - Addition of cpuid:D0670/0x36 microcode at revision 0x137;\n  - Addition of cpuid:E0652/0x94 microcode at revision 0x11c;\n  - Removal of cpuid:806F8/0x10 microcode at revision 0x2c000410;\n  - Removal of cpuid:806F8/0x87 microcode at revision 0x2b000650;\n  - Removal of cpuid:90672/0x07 microcode at revision 0x3d;\n  - Removal of cpuid:906A3/0x80 microcode at revision 0x43a;\n  - Removal of cpuid:B0671/0x32 microcode at revision 0x132;\n  - Removal of cpuid:B0674/0x32 microcode at revision 0x132;\n  - Removal of cpuid:B06A2/0xe0 microcode at revision 0x6133;\n  - Removal of cpuid:C0662/0x82 microcode at revision 0x11a;\n  - Removal of cpuid:C06F2/0x87 microcode at revision 0x21000291;\n  - Removal of cpuid:C06F2/0x87 microcode at revision 0x210002c0;\n  - Update of cpuid:606A6/0x87 (ICX-SP D0) microcode from revision 0xd000410\n    up to 0xd000433;\n  - Update of cpuid:606C1/0x10 microcode from revision 0x10002e0 up to\n    0x1000301;\n  - Update of cpuid:706E5/0x80 (ICL-U/Y D1) microcode from revision 0xca up to\n    0xce;\n  - Update of cpuid:806C1/0x80 (TGL-UP3/UP4 B1) microcode from revision 0xbc\n    up to 0xbe;\n  - Update of cpuid:806C2/0xc2 (TGL-R C0) microcode from revision 0x3c up to\n    0x3e;\n  - Update of cpuid:806D1/0xc2 (TGL-H R0) microcode from revision 0x56 up to\n    0x58;\n  - Update of cpuid:806F4/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F4/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F5/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F5/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F6/0x10 microcode from revision 0x2c000410 up to\n    0x2c000435;\n  - Update of cpuid:806F6/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:806F7/0x87 microcode from revision 0x2b000650 up to\n    0x2b000685;\n  - Update of cpuid:90675/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:906A4/0x40 microcode from revision 0xb up to 0xc;\n  - Update of cpuid:906A4/0x80 microcode from revision 0x43a up to 0x43b;\n  - Update of cpuid:A0671/0x02 (RKL-S B0) microcode from revision 0x64 up to\n    0x66;\n  - Update of cpuid:A06A4/0xe6 microcode from revision 0x25 up to 0x28;\n  - Update of cpuid:A06D1/0x20 microcode from revision 0xa000124 up to\n    0xa000151;\n  - Update of cpuid:A06D1/0x95 microcode from revision 0x10003f0 up to\n    0x1000434;\n  - Update of cpuid:A06E1/0x97 microcode from revision 0x1000273 up to\n    0x1000309;\n  - Update of cpuid:A06F3/0x01 microcode from revision 0x3000382 up to\n    0x30003b2;\n  - Update of cpuid:B0650/0x80 microcode from revision 0xa up to 0xe;\n  - Update of cpuid:B06A3/0xe0 microcode from revision 0x6133 up to 0x6134;\n  - Update of cpuid:B06A8/0xe0 microcode from revision 0x6133 up to 0x6134;\n  - Update of cpuid:B06D1/0x80 microcode from revision 0x125 up to 0x128;\n  - Update of cpuid:B06E0/0x19 microcode from revision 0x1e up to 0x21;\n  - Update of cpuid:B06F2/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F5/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F6/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:B06F7/0x07 microcode from revision 0x3d up to 0x3e;\n  - Update of cpuid:C0652/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C0664/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C06A2/0x82 microcode from revision 0x11a up to 0x122;\n  - Update of cpuid:C06F1/0x87 microcode from revision 0x21000291 up to\n    0x210002f4;\n  - Update of cpuid:C06F1/0x87 microcode from revision 0x210002c0 up to\n    0x210002f4;\n- Keep cpuid:50656 (CLX-SP B0) and cpuid:C06F1 (EMR-SP A0) microcode that\n  upstream dropped, as microcode_ctl-4:20260812-1.el8_10 does.","modified":"2026-10-26T09:30:55.055928506Z","published":"2026-09-11T09:00:54Z","upstream":["CVE-2025-35973"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos-stream8els/CLSA-2026-1789117244.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-35973"}],"affected":[{"package":{"name":"microcode_ctl","ecosystem":"TuxCare:CentOS-Stream:8","purl":"pkg:rpm/tuxcare/microcode_ctl?distro=centos-stream-8"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:20260812-2.el8.tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1789117244.json"}}],"schema_version":"1.9.0"}