CVE-2023-31347

mediumpriority · track · 20EPSS 0.005 · 40 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.46% (40th) EPSS

CVSS 4.9 · medium

Is it mine?

69 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

Due to a code bug in Secure_TSC, SEV firmware may allow an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled potentially resulting in a loss of guest integrity.

cvss

Technical severity, 0–10. One row per scoring source.

4.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 1.2 · impact 3.6

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Nsecondary · ENISA EU

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Nsecondaryexploitability 1.2 · impact 3.6

v3.14.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-682US

affected products (69)

Products and version ranges known to be affected.

AMD Prozessorall versionscert_bundDEcpe:/h:amd:amd_processor:-
Dell Computerall versionscert_bundDEcpe:/o:dell:dell_computer:-
IBM Power Hardware Management Console V10all versionscert_bundDEcpe:/a:ibm:hardware_management_console:v10
Lenovo Computerall versionscert_bundDEcpe:/h:lenovo:computer:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
3rd Gen AMD EPYC™ Processorsall versionsenisa_euvdEU
4th Gen AMD EPYC™ Processorsall versionsenisa_euvdEU
amd epyc 7203 firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7203_firmware:*:*:*:*:*:*:*:*
amd epyc 7203p firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7203p_firmware:*:*:*:*:*:*:*:*
amd epyc 72f3 firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
amd epyc 7303 firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7303_firmware:*:*:*:*:*:*:*:*
amd epyc 7303p firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7303p_firmware:*:*:*:*:*:*:*:*
amd epyc 7313 firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
amd epyc 7313p firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
amd epyc 7343 firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
amd epyc 7373x firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
amd epyc 73f3 firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
amd epyc 7413 firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
amd epyc 7443 firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
amd epyc 7443p firmware< milanpi_1.0.0.cnvdUScpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*

showing 20 of 69

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0371AMD SEV-SNP Firmware für Prozessoren: Mehrere Schwachstellen ermöglichen Offenlegung von InformationenDeutsch2024-02-13csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in AMD SEV-SNP Firmware für Prozessoren ausnutzen, um Informationen offenzulegen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2024-02-13modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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