
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
- Severity
- High · CVSS 7
CVSS: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.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | intel-microcode | sid | 3.20260227.1 | vulnerable |
| Debian | intel-microcode | forky | 3.20260227.1 | vulnerable |
| Debian | intel-microcode | trixie | 3.20251111.1~deb13u1 | vulnerable |
| Debian | intel-microcode | trixie-security | 3.20250812.1~deb13u1 | vulnerable |
| Debian | intel-microcode | bookworm | 3.20251111.1~deb12u1 | vulnerable |
| Debian | intel-microcode | bookworm-security | 3.20250812.1~deb12u1 | vulnerable |
| Cpe | xeon_6337p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6349p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6353p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6357p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6369p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6377p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6503p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6503p-b_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6505p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6507p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6511p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6513p-b_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6515p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6516p-b_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6517p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6518p-b_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6520p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6521p_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6523p-b_firmware | Not reported | Not reported | unknown |
| Cpe | xeon_6527p_firmware | Not reported | Not reported | unknown |
| Suse | ucode-intel | linux enterprise server 16.0 | 20260812-160000.1.1 | fixed |
| Suse | ucode-intel | linux enterprise server for sap applications 16.0 | 20260812-160000.1.1 | fixed |
| Suse | ucode-intel | linux micro 6.2 | 20260812-160000.1.1 | fixed |
| Suse | ucode-intel | linux micro 6.1 | 20260812-slfo.1.1_1.1 | fixed |
| Suse | ucode-intel | linux micro 6.0 | 20260812-1.1 | fixed |
| Suse | ucode-intel | linux enterprise micro 5.3 | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise micro 5.4 | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise micro 5.5 | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise module for basesystem 15 sp7 | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise high performance computing 15 sp4-espos | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise high performance computing 15 sp4-ltss | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise high performance computing 15 sp5-espos | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise high performance computing 15 sp5-ltss | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise server 15 sp4-ltss | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise server 15 sp5-ltss | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise server 15 sp6-ltss | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise server for sap applications 15 sp4 | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise server for sap applications 15 sp5 | 20260812-150200.68.1 | fixed |
| Suse | ucode-intel | linux enterprise server for sap applications 15 sp6 | 20260812-150200.68.1 | fixed |
| Suse | microcode_ctl | linux enterprise server 11 sp4 ltss extreme core | 1.17-102.83.98.1 | fixed |
| Suse | ucode-intel | linux enterprise server 12 sp5-ltss | 20260812-164.1 | fixed |
| Suse | ucode-intel | linux enterprise server ltss extended security 12 sp5 | 20260812-164.1 | fixed |
| Opensuse | ucode-intel | leap 16.0 | 20260812-160000.1.1 | fixed |
| Opensuse | ucode-intel | tumbleweed | 20260812-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | intel-microcode | source | sid | (unfixed) | not yet assigned | Not reported | [1144158] |
| Debian | intel-microcode | source | forky | (unfixed) | not yet assigned | Not reported | [1144158] |
| Debian | intel-microcode | source | trixie | (unfixed) | not yet assigned | Not reported | [1144158] |
| Debian | intel-microcode | source | bookworm | (unfixed) | not yet assigned | Not reported | [1144158] |
| Suse | ucode-intel | rpm | linux enterprise server 16.0 | 20260812-160000.1.1 | Not reported | SUSE-SU-2026:23602-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise server for sap applications 16.0 | 20260812-160000.1.1 | Not reported | SUSE-SU-2026:23602-1 | Not reported |
| Suse | ucode-intel | rpm | linux micro 6.2 | 20260812-160000.1.1 | Not reported | SUSE-SU-2026:23459-1 | Not reported |
| Suse | ucode-intel | rpm | linux micro 6.1 | 20260812-slfo.1.1_1.1 | Not reported | SUSE-SU-2026:23539-1 | Not reported |
| Suse | ucode-intel | rpm | linux micro 6.0 | 20260812-1.1 | Not reported | SUSE-SU-2026:23449-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise micro 5.3 | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise micro 5.4 | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise micro 5.5 | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise module for basesystem 15 sp7 | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise high performance computing 15 sp4-espos | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise high performance computing 15 sp4-ltss | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise high performance computing 15 sp5-espos | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise high performance computing 15 sp5-ltss | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise server 15 sp4-ltss | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise server 15 sp5-ltss | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise server 15 sp6-ltss | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise server for sap applications 15 sp4 | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise server for sap applications 15 sp5 | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise server for sap applications 15 sp6 | 20260812-150200.68.1 | Not reported | SUSE-SU-2026:4025-1 | Not reported |
| Suse | microcode_ctl | rpm | linux enterprise server 11 sp4 ltss extreme core | 1.17-102.83.98.1 | Not reported | SUSE-SU-2026:4019-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise server 12 sp5-ltss | 20260812-164.1 | Not reported | SUSE-SU-2026:3917-1 | Not reported |
| Suse | ucode-intel | rpm | linux enterprise server ltss extended security 12 sp5 | 20260812-164.1 | Not reported | SUSE-SU-2026:3917-1 | Not reported |
| Opensuse | ucode-intel | rpm | leap 16.0 | 20260812-160000.1.1 | Not reported | OPENSUSE-SU-2026:21736-1 | Not reported |
| Opensuse | ucode-intel | rpm | tumbleweed | 20260812-1.1 | Not reported | OPENSUSE-SU-2026:11599-1 | Not reported |
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 · bookwormAffected
nvd · intel-microcode · debian · bookworm; nvd · intel-microcode · debian · 12
[Debian 13 (Trixie)]
- [intel-microcode]Affected
Details (1)
3.20251111.1~deb13u1· amd64 · trixieAffected
nvd · intel-microcode · debian · 13
[openSUSE Tumbleweed]
- [ucode-intel]Fixed
Source package: [ucode-intel]
Details (1)
20260812-1.1· x86_64 · tumbleweedFixed · Fixed:
20260812-1.1nvd · ucode-intel · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11599-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2025-31936]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-31936]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23449-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23459-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23539-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23602-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3917-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:4019-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:4025-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11599-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21736-1]
- [https://security-tracker.debian.org/tracker/CVE-2025-31936]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-31936.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2772.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]