What is CVE-2021-39296?

CVE-2021-39296 is a critical-severity vulnerability in Openbmc-project Openbmc, classified under Improper Authentication. CVSS score: 10.0/10. Published 2021-09-09.

How severe is CVE-2021-39296?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Auth bypass in Openbmc-project Openbmc

CVE-2021-39296

In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.

Vulnerability class: Broken Authentication

EPSS: 0.030 (85.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Openbmc-project Openbmc — versions 2.9.0
N/a — versions n/a

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

cve@mitre.org (Third Party Advisory)
cve@mitre.org (Exploit, Third Party Advisory)
cve@mitre.org

Frequently asked questions

What is CVE-2021-39296?: CVE-2021-39296 is a critical-severity vulnerability in Openbmc-project Openbmc, classified under Improper Authentication. CVSS score: 10.0/10. Published 2021-09-09.
How severe is CVE-2021-39296?: Critical severity. CVSS v3 base score is 10.0 out of 10.