CVE-2021-33120: Medium severity intel atom p5942b firmware vulnerability

Published Feb 9, 2022
·
Updated

Last updated 24 July 2024

Other sources

Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R) Processors may allow authenticated user to potentially enable information disclosure or cause denial of service via network access.

Affected Software

101 affected componentsFixes available
All of the following
Intel Atom P5942b Firmware
Intel Atom P5942b
All of the following
Intel Atom P5931b Firmware
Intel Atom P5931b
All of the following
Intel Atom P5962b Firmware
Intel Atom P5962b
All of the following
Intel Atom P5921b Firmware
Intel Atom P5921b
All of the following
Intel Xeon D1700 Firmware
Intel Xeon D1700
All of the following
Intel Xeon D2700 Firmware
Intel Xeon D2700
All of the following
Intel Core I5-l16g7 Firmware
Intel Core I5-l16g7
All of the following
Intel Core I3-l13g4 Firmware
Intel Core I3-l13g4
All of the following
Intel Pentium J6425 Firmware
Intel Pentium J6425
All of the following
Intel Pentium N6415 Firmware
Intel Pentium N6415
All of the following
Intel Celeron J6413 Firmware
Intel Celeron J6413
All of the following
Intel Celeron N6211 Firmware
Intel Celeron N6211
All of the following
Intel Atom X6413e Firmware
Intel Atom X6413e
All of the following
Intel Atom X6425re Firmware
Intel Atom X6425re
All of the following
Intel Atom X6427fe Firmware
Intel Atom X6427fe
All of the following
Intel Atom X6212re Firmware
Intel Atom X6212re
All of the following
Intel Atom X6200fe Firmware
Intel Atom X6200fe
All of the following
Intel Atom X6211e Firmware
Intel Atom X6211e
All of the following
Intel Atom X6425e Firmware
Intel Atom X6425e
All of the following
Intel Pentium Silver N6005 Firmware
Intel Pentium Silver N6005
All of the following
Intel Pentium Silver N6000 Firmware
Intel Pentium Silver N6000
All of the following
Intel Celeron N4505 Firmware
Intel Celeron N4505
All of the following
Intel Celeron N4500 Firmware
Intel Celeron N4500
All of the following
Intel Celeron N5105 Firmware
Intel Celeron N5105
All of the following
Intel Celeron N5100 Firmware
Intel Celeron N5100
Intel Atom P5942b Firmware
Intel Atom P5942b
Intel Atom P5931b Firmware
Intel Atom P5931b
Intel Atom P5962b Firmware
Intel Atom P5962b
Intel Atom P5921b Firmware
Intel Atom P5921b
Intel Xeon D1700 Firmware
Intel Xeon D1700
Intel Xeon D2700 Firmware
Intel Xeon D2700
Intel Core I5-l16g7 Firmware
Intel Core I5-l16g7
Intel Core I3-l13g4 Firmware
Intel Core I3-l13g4
Intel Pentium J6425 Firmware
Intel Pentium J6425
Intel Pentium N6415 Firmware
Intel Pentium N6415
Intel Celeron J6413 Firmware
Intel Celeron J6413
Intel Celeron N6211 Firmware
Intel Celeron N6211
Intel Atom X6413e Firmware
Intel Atom X6413e
Intel Atom X6425re Firmware
Intel Atom X6425re
Intel Atom X6427fe Firmware
Intel Atom X6427fe
Intel Atom X6212re Firmware
Intel Atom X6212re
Intel Atom X6200fe Firmware
Intel Atom X6200fe
Intel Atom X6211e Firmware
Intel Atom X6211e
Intel Atom X6425e Firmware
Intel Atom X6425e
Intel Pentium Silver N6005 Firmware
Intel Pentium Silver N6005
Intel Pentium Silver N6000 Firmware
Intel Pentium Silver N6000
Intel Celeron N4505 Firmware
Intel Celeron N4505
Intel Celeron N4500 Firmware
Intel Celeron N4500
Intel Celeron N5105 Firmware
Intel Celeron N5105
Intel Celeron N5100 Firmware
Intel Celeron N5100
debian/intel-microcode
3.20240813.1~deb11u13.20250211.1~deb11u13.20250211.1~deb12u13.20231114.1~deb12u13.20250211.1

Event History

Feb 9, 2022
CVE Published
via MITRE·10:04 PM
Data Sourced
via MITRE·10:04 PM
DescriptionWeakness
Data Sourced
via NVD·11:15 PM
DescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:56 PM
Description
Sep 16, 2024
Data Sourced
via Ubuntu·01:48 AM
RemedyDescriptionSeverityAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2021-33120?

CVE-2021-33120 is a vulnerability that allows an authenticated user to potentially enable information disclosure or cause denial of service via network access on some Intel Atom(R) Processors.

2

What is the severity of CVE-2021-33120?

The severity of CVE-2021-33120 is not specified.

3

How can the CVE-2021-33120 vulnerability be exploited?

CVE-2021-33120 can be exploited by an authenticated user via network access.

4

How do I fix CVE-2021-33120 on Ubuntu?

To fix CVE-2021-33120 on Ubuntu, update the intel-microcode package to version 3.20220510.0ubuntu0.22.04.1 or higher.

5

How do I fix CVE-2021-33120 on Debian?

To fix CVE-2021-33120 on Debian, update the intel-microcode package to version 3.20220510.1~deb10u1 or higher.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203