CVE-2021-39295

Name: CVE-2021-39295
Creator: NVD / NIST
Published: 2023-04-15T20:16:00.667+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.28%

Last modified Jun 17, 2026

CVE-2021-39295 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.28% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.28%

66.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Openbmc-Project	Openbmc	2.9.0

References

https://github.com/google/security-research/security/advisories/GHSA-gg9x-v835-m48qExploit, Third Party Advisory
https://github.com/openbmc/docs/blob/master/release/release-notes.mdRelease Notes
https://github.com/openbmc/openbmcProduct
https://github.com/openbmc/openbmc/issues/3811Not Applicable
https://openbmc.orgProduct
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00737.htmlThird Party Advisory
https://github.com/google/security-research/security/advisories/GHSA-gg9x-v835-m48qExploit, Third Party Advisory
https://github.com/openbmc/docs/blob/master/release/release-notes.mdRelease Notes
https://github.com/openbmc/openbmcProduct
https://github.com/openbmc/openbmc/issues/3811Not Applicable
https://openbmc.orgProduct
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00737.htmlThird Party Advisory

Timeline

Published: Apr 15, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39295?

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.

How severe is CVE-2021-39295?

CVE-2021-39295 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39295?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-39295?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST