CVE catalog

CVE-2025-31936

Improper handling of overlap between protected memory ranges for some Intel(R) Xeon(R) 6 processors when using Intel(R) TDX within SMM may allow an escalation of privilege. SMM adversary with a privil

[CVE catalog]

Severity
High · CVSS 7CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
Source
[NVD] · [CVE record]
EPSS
0.10% · Oct 25, 2026

Improper handling of overlap between protected memory ranges for some Intel(R) Xeon(R) 6 processors when using Intel(R) TDX within SMM may allow an escalation of privilege. SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianintel-microcodesid3.20260227.1vulnerable
Debianintel-microcodeforky3.20260227.1vulnerable
Debianintel-microcodetrixie3.20251111.1~deb13u1vulnerable
Debianintel-microcodetrixie-security3.20250812.1~deb13u1vulnerable
Debianintel-microcodebookworm3.20251111.1~deb12u1vulnerable
Debianintel-microcodebookworm-security3.20250812.1~deb12u1vulnerable
Cpexeon_6337p_firmwareNot reportedNot reportedunknown
Cpexeon_6349p_firmwareNot reportedNot reportedunknown
Cpexeon_6353p_firmwareNot reportedNot reportedunknown
Cpexeon_6357p_firmwareNot reportedNot reportedunknown
Cpexeon_6369p_firmwareNot reportedNot reportedunknown
Cpexeon_6377p_firmwareNot reportedNot reportedunknown
Cpexeon_6503p_firmwareNot reportedNot reportedunknown
Cpexeon_6503p-b_firmwareNot reportedNot reportedunknown
Cpexeon_6505p_firmwareNot reportedNot reportedunknown
Cpexeon_6507p_firmwareNot reportedNot reportedunknown
Cpexeon_6511p_firmwareNot reportedNot reportedunknown
Cpexeon_6513p-b_firmwareNot reportedNot reportedunknown
Cpexeon_6515p_firmwareNot reportedNot reportedunknown
Cpexeon_6516p-b_firmwareNot reportedNot reportedunknown
Cpexeon_6517p_firmwareNot reportedNot reportedunknown
Cpexeon_6518p-b_firmwareNot reportedNot reportedunknown
Cpexeon_6520p_firmwareNot reportedNot reportedunknown
Cpexeon_6521p_firmwareNot reportedNot reportedunknown
Cpexeon_6523p-b_firmwareNot reportedNot reportedunknown
Cpexeon_6527p_firmwareNot reportedNot reportedunknown
Suseucode-intellinux enterprise server 16.020260812-160000.1.1fixed
Suseucode-intellinux enterprise server for sap applications 16.020260812-160000.1.1fixed
Suseucode-intellinux micro 6.220260812-160000.1.1fixed
Suseucode-intellinux micro 6.120260812-slfo.1.1_1.1fixed
Suseucode-intellinux micro 6.020260812-1.1fixed
Suseucode-intellinux enterprise micro 5.320260812-150200.68.1fixed
Suseucode-intellinux enterprise micro 5.420260812-150200.68.1fixed
Suseucode-intellinux enterprise micro 5.520260812-150200.68.1fixed
Suseucode-intellinux enterprise module for basesystem 15 sp720260812-150200.68.1fixed
Suseucode-intellinux enterprise high performance computing 15 sp4-espos20260812-150200.68.1fixed
Suseucode-intellinux enterprise high performance computing 15 sp4-ltss20260812-150200.68.1fixed
Suseucode-intellinux enterprise high performance computing 15 sp5-espos20260812-150200.68.1fixed
Suseucode-intellinux enterprise high performance computing 15 sp5-ltss20260812-150200.68.1fixed
Suseucode-intellinux enterprise server 15 sp4-ltss20260812-150200.68.1fixed
Suseucode-intellinux enterprise server 15 sp5-ltss20260812-150200.68.1fixed
Suseucode-intellinux enterprise server 15 sp6-ltss20260812-150200.68.1fixed
Suseucode-intellinux enterprise server for sap applications 15 sp420260812-150200.68.1fixed
Suseucode-intellinux enterprise server for sap applications 15 sp520260812-150200.68.1fixed
Suseucode-intellinux enterprise server for sap applications 15 sp620260812-150200.68.1fixed
Susemicrocode_ctllinux enterprise server 11 sp4 ltss extreme core1.17-102.83.98.1fixed
Suseucode-intellinux enterprise server 12 sp5-ltss20260812-164.1fixed
Suseucode-intellinux enterprise server ltss extended security 12 sp520260812-164.1fixed
Opensuseucode-intelleap 16.020260812-160000.1.1fixed
Opensuseucode-inteltumbleweed20260812-1.1fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianintel-microcodesourcesid(unfixed)not yet assignedNot reported[1144158]
Debianintel-microcodesourceforky(unfixed)not yet assignedNot reported[1144158]
Debianintel-microcodesourcetrixie(unfixed)not yet assignedNot reported[1144158]
Debianintel-microcodesourcebookworm(unfixed)not yet assignedNot reported[1144158]
Suseucode-intelrpmlinux enterprise server 16.020260812-160000.1.1Not reportedSUSE-SU-2026:23602-1Not reported
Suseucode-intelrpmlinux enterprise server for sap applications 16.020260812-160000.1.1Not reportedSUSE-SU-2026:23602-1Not reported
Suseucode-intelrpmlinux micro 6.220260812-160000.1.1Not reportedSUSE-SU-2026:23459-1Not reported
Suseucode-intelrpmlinux micro 6.120260812-slfo.1.1_1.1Not reportedSUSE-SU-2026:23539-1Not reported
Suseucode-intelrpmlinux micro 6.020260812-1.1Not reportedSUSE-SU-2026:23449-1Not reported
Suseucode-intelrpmlinux enterprise micro 5.320260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise micro 5.420260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise micro 5.520260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise module for basesystem 15 sp720260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise high performance computing 15 sp4-espos20260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise high performance computing 15 sp4-ltss20260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise high performance computing 15 sp5-espos20260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise high performance computing 15 sp5-ltss20260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise server 15 sp4-ltss20260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise server 15 sp5-ltss20260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise server 15 sp6-ltss20260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise server for sap applications 15 sp420260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise server for sap applications 15 sp520260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Suseucode-intelrpmlinux enterprise server for sap applications 15 sp620260812-150200.68.1Not reportedSUSE-SU-2026:4025-1Not reported
Susemicrocode_ctlrpmlinux enterprise server 11 sp4 ltss extreme core1.17-102.83.98.1Not reportedSUSE-SU-2026:4019-1Not reported
Suseucode-intelrpmlinux enterprise server 12 sp5-ltss20260812-164.1Not reportedSUSE-SU-2026:3917-1Not reported
Suseucode-intelrpmlinux enterprise server ltss extended security 12 sp520260812-164.1Not reportedSUSE-SU-2026:3917-1Not reported
Opensuseucode-intelrpmleap 16.020260812-160000.1.1Not reportedOPENSUSE-SU-2026:21736-1Not reported
Opensuseucode-intelrpmtumbleweed20260812-1.1Not reportedOPENSUSE-SU-2026:11599-1Not reported

[Debian bug #1144158]

Notes

[trixie] intel-microcode: As usual fixed top-down, expose first in unstable, then likely point release [bookworm] intel-microcode: As usual fixed top-down, expose first in unstable, then likely point release

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [intel-microcode]Affected
    Details (1)
    • 3.20251111.1~deb12u1 · amd64 · bookworm

      Affected

      nvd · intel-microcode · debian · bookworm; nvd · intel-microcode · debian · 12

[Debian 13 (Trixie)]

  • [intel-microcode]Affected
    Details (1)
    • 3.20251111.1~deb13u1 · amd64 · trixie

      Affected

      nvd · intel-microcode · debian · 13

[openSUSE Tumbleweed]

  • Source package: [ucode-intel]

    Details (1)
    • 20260812-1.1 · x86_64 · tumbleweed

      Fixed · Fixed: 20260812-1.1

      nvd · ucode-intel · opensuse · tumbleweed

Observed:

References