CVE-2021-39296
CVSS v3
10
CRITICAL
EPSS Score
3.0 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.
Technical details
- Published
- 2021-09-09
Frequently asked questions
What is CVE-2021-39296?
In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.
Is CVE-2021-39296 actively exploited?
Active exploitation of CVE-2021-39296 has not been confirmed. Its EPSS score was 3.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-39296?
CVE-2021-39296 has a CVSS v3 base score of 10 (CRITICAL severity).
Is CVE-2021-39296 affecting your environment?
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