CVE-2021-39296

highpriority · track · 41EPSS 0.030 · 87 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.03% (87th) EPSS

CVSS 10 · high

Is it mine?

13 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

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

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 6

v3.110criticalAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USprimaryCWE-287US

affected products (13)

Products and version ranges known to be affected.

Intel Chipsetall versionscert_bundDEcpe:/a:intel:chipset_device_software:-
n/a n/a≤ n/aenisa_euvdEU
Intel Corp. 3rd Gen Intel Xeon Scalable processor familyall versionsfstec_bduRU
Intel Corp. Intel C250 seriesall versionsfstec_bduRU
Intel Corp. Intel C620 seriesall versionsfstec_bduRU
Intel Corp. Intel C620A seriesall versionsfstec_bduRU
Intel Corp. Intel C740all versionsfstec_bduRU
Intel Corp. Intel Xeon E Seriesall versionsfstec_bduRU
Intel Corp. Intel Xeon Processor W 3100all versionsfstec_bduRU
Intel Corp. Intel Xeon Scalable Processorall versionsfstec_bduRU
Intel Corp. Intel Xeon W 3200all versionsfstec_bduRU
Сообщество свободного программного обеспечения OpenBMC≤ 2.9fstec_bduRU
openbmc-project openbmc= 2.9.0nvdUScpe:2.3:a:openbmc-project:openbmc:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0376Intel Chipset: Mehrere SchwachstellenDeutsch2023-02-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Intel Chipset ausnutzen, um einen Denial of Service Angriff durchzuführen und seine Privilegien zu erweitern.
CVE-2021-392952023-04-15vendor · osvUS
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.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund nvd NVD CVE.org MITRE

published 2021-09-09modified 2026-06-17

related (7,714)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-105133US	high7.3OT critical	79.5% (100th)	KEV	2026-10-04
A vulnerability was detected in Ahsay AhsayCBS up to 9.15.2.69/10.3.4.44. This affects the function checkSysPwd of the file com/ahsay/obs/api/ApiStructsAction.java of the component…
CVE-2026-82329US	—OT critical	14.4% (97th)	KEV	2026-08-28
JFrog Artifactory contains an authentication weakness that, under default configuration, may allow an unauthenticated attacker with network access to obtain administrative privileg…
CVE-2026-42018US	—OT critical	9.80% (96th)	KEV	2026-08-12
JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.
CVE-2026-65400US	—OT critical	1.72% (77th)	KEV	2026-08-06
An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, ma…
CVE-2026-16232US	critical9.8OT critical	3.52% (89th)	KEV	2026-07-22
An authentication bypass vulnerability in the Check Point SmartConsole login process allows an unauthenticated remote attacker to obtain an application login token and use it to au…

+7709 more

references (12)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan