CVE & CISA-KEV Catalog

CVE-2023-20530

HIGH
7.5
CVSS v3
NVD

Description

Insufficient input validation of BIOS mailbox messages in SMU may result in out-of-bounds memory reads potentially resulting in a denial of service.

CWE-20Improper Input Validation

How to fix

Remediation Available
epyc 7003 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 72f3 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7313 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7313p firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7343 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7373x firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 73f3 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7413 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7443 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7443p firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7453 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 74f3 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7513 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7543 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7543p firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7573x firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 75f3 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7643 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7663 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7713 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7713p firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7743 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7763 firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD
epyc 7773x firmwareNVD
Affected:< milanpi_1.0.0.5Fixed in:milanpi_1.0.0.5CVE-2023-20530derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.62%probability of exploitation in 30 days
45thpercentile

Moderate risk: more likely to be exploited than 45% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-3400Critical10.0100%KEV + Ransom-
CVE-2021-45105Medium5.9100%-Fix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2021-21985Critical9.8100%KEV + RansomFix
CVE-2018-7600Critical9.8100%KEV + RansomFix
CVE-2020-3452High7.5100%KEVFix
Embed a live status badge for CVE-2023-20530
CVE-2023-20530 severity badge

Markdown

[![CVE-2023-20530](https://tridentstack.com/cve/badge/CVE-2023-20530.svg)](https://tridentstack.com/cve/CVE-2023-20530)

HTML

<a href="https://tridentstack.com/cve/CVE-2023-20530"><img src="https://tridentstack.com/cve/badge/CVE-2023-20530.svg" alt="CVE-2023-20530"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-07.