CVE-2023-31315

HIGHNVD 7.57.5—

7.5

Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 9.6%
KEV: Not listed

Published

August 12, 2024

Last Modified

April 15, 2026

References (4)

psirt@amdhttps://www.amd.com/en/resources/product-security/bulletin/amd-sb-7014.html
af854a3a-2127-422b-91ae-364da2661108https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Enrique%20Nissim%20Krzysztof%20Okupski%20-%20AMD%20Sinkclose%20Universal%20Ring-2%20Privilege%20Escalation.pdf
af854a3a-2127-422b-91ae-364da2661108https://news.ycombinator.com/item?id=41475975
af854a3a-2127-422b-91ae-364da2661108https://www.darkreading.com/remote-workforce/amd-issues-updates-for-silicon-level-sinkclose-flaw

Patch Availability(9)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	amd64-microcode (3.20231019.1ubuntu2.1) @ noble	2026-05-21	ubuntu
redhat	linux-firmware-0:20240827-124.git3cff7109.el8_10	2024-10-02	redhat
redhat	linux-firmware-0:20240715-118.2.git4c8fb21e.el8_8	2024-09-03	redhat
redhat	linux-firmware-0:20240716-143.2.el9_4	2024-09-03	redhat
redhat	linux-firmware-0:20220209-131.el9_0	2024-08-29	redhat
redhat	linux-firmware-0:20200421-84.git78c0348.el7_9	2024-08-29	redhat
redhat	linux-firmware-0:20190429-76.gitddde598.el7_7	2024-08-29	redhat
redhat	linux-firmware-0:20240715-102.2.git4c8fb21e.el8_2	2024-08-27	redhat
redhat	linux-firmware-0:20240716-138.2.el9_2	2024-08-20	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-94Improper Control of Generation of Code (Code Injection)

All Vendor Advisories

(9)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-07 15:23 UTCepss_batch
2026-06-07 15:23 UTCepss_batch
2026-06-06 13:46 UTCepss_batch
2026-06-06 13:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-04 13:39 UTCOSV refresh
2026-06-04 13:11 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2023-31315?

CVE-2023-31315 is a high vulnerability published on August 12, 2024. Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution.

When was CVE-2023-31315 disclosed?

CVE-2023-31315 was first published in the National Vulnerability Database on August 12, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-31315 actively exploited?

CVE-2023-31315 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-31315?

CVE-2023-31315 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2023-31315?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-31315, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-31315

Explore →

Is Your Infrastructure Affected by CVE-2023-31315?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2023-31315

Published

Last Modified

References (4)

Patch Availability(9)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-31315?

Same vendor

Same CWE

CVE-2023-31315

📅 Published

🔄 Last Modified

🔗 References (4)

Patch Availability(9)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-31315?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same vendor + same CWE)