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01 Record

CVE-2021-39296

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

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
3.03% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 87.4% of scored records. A rank, not a probability.
NVD base score
10.0 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-09-09 00:00Z5 YR AGO
Last updated
2024-08-04 02:06Z2 YR AGO
Reserved
2021-08-19
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-287Improper AuthenticationClass
Data version
5.1
Document digest
2cf17a942bffc6f9771960670ba30090bcc5fb69af16268e07c1b218dd85a583

05 Affected products

VendorProductVersionsPlatforms
openbmc-projectopenbmcNot specified—

06 References