CVE-2021-39295

HIGHNVD 7.57.5—Elevated

7.5

In OpenBMC 2.9, crafted IPMI messages allow an attacker to cause a denial of service to the BMC via the netipmid (IPMI lan+) interface.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 77.6%
KEV: Not listed

Published

April 15, 2023

Last Modified

February 6, 2025

References (12)

cve@mitrehttps://github.com/google/security-research/security/advisories/GHSA-gg9x-v835-m48q
cve@mitrehttps://github.com/openbmc/docs/blob/master/release/release-notes.md
cve@mitrehttps://github.com/openbmc/openbmc
cve@mitrehttps://github.com/openbmc/openbmc/issues/3811
cve@mitrehttps://openbmc.org
cve@mitrehttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00737.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/google/security-research/security/advisories/GHSA-gg9x-v835-m48q
af854a3a-2127-422b-91ae-364da2661108https://github.com/openbmc/docs/blob/master/release/release-notes.md
af854a3a-2127-422b-91ae-364da2661108https://github.com/openbmc/openbmc
af854a3a-2127-422b-91ae-364da2661108https://github.com/openbmc/openbmc/issues/3811
af854a3a-2127-422b-91ae-364da2661108https://openbmc.org
af854a3a-2127-422b-91ae-364da2661108https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00737.html

Weakness Classification(1)

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

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 12× 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.

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Frequently asked(5)

What is CVE-2021-39295?

CVE-2021-39295 is a high vulnerability published on April 15, 2023. In OpenBMC 2.9, crafted IPMI messages allow an attacker to cause a denial of service to the BMC via the netipmid (IPMI lan+) interface.

When was CVE-2021-39295 disclosed?

CVE-2021-39295 was first published in the National Vulnerability Database on April 15, 2023, with the most recent update on February 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-39295 actively exploited?

CVE-2021-39295 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 77.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-39295?

CVE-2021-39295 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-39295?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-39295, 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

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CVE-2021-39295

📅 Published

🔄 Last Modified

🔗 References (12)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-39295?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (12)

Frequently asked(5)

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