← Vulnerability feed

Vulnerability record · CVE-2021-33120 · published 9 February 2022

CVE-2021-33120: Intel atom p5942b firmware out-of-bounds read vulnerability

Intel · Atom P5942b Firmware

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.

5.4 CVSS 3.1 Medium EPSS 0.95% · top 40.3% CWE-125 · Out-of-bounds read
5.4CVSS 3.1 base score, v2 5.5
0.95%EPSS exploitation probability, 30 days
NoNot in CISA KEV
25Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

Affected products

25 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00589.html MitigationVendor Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00589.html MitigationVendor Advisory

Track CVE-2021-33120 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.0CVE-2023-25756Intel atom x6200fe firmware out-of-bounds read vulnerabilityOut-of-bounds read in the BIOS firmware for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege vi…EPSS 0.40%8.0CVE-2022-44611Intel celeron j6413 firmware improper input validation vulnerabilityImproper input validation in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege…EPSS 0.35%6.8CVE-2022-21216Intel xeon gold 5315y firmware vulnerabilityInsufficient granularity of access control in out-of-band management in some Intel(R) Atom and Intel Xeon Scalable Processors may allow a privileged …EPSS 0.54%6.7CVE-2022-37343Intel atom c3338r firmware improper access control vulnerabilityImproper access control in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege v…EPSS 0.17%3.5CVE-2023-22329Intel atom x6200fe firmware improper input validation vulnerabilityImproper input validation in the BIOS firmware for some Intel(R) Processors may allow an authenticated user to potentially enable denial of service v…EPSS 0.30%8.8CVE-2026-11645Google Chrome V8 out-of-bounds read and write enables sandbox code executionGoogle Chrome before 149.0.7827.103 contains an out-of-bounds read and write in the V8 JavaScript engine. A crafted HTML page can trigger the memory …KEVEPSS 2.2%analysed7.8CVE-2023-36424Windows Common Log File System Driver out-of-bounds read privilege escalationCVE-2023-36424 is an out-of-bounds read (CWE-125) in the Windows Common Log File System (CLFS) driver that allows elevation of privilege. It affects …KEVEPSS 12%analysed9.3CVE-2026-3055Citrix NetScaler ADC and Gateway SAML IDP memory overreadNetScaler ADC and NetScaler Gateway, when configured as a SAML identity provider, fail to validate input sufficiently, causing an out-of-bounds memor…KEVEPSS 4.0%analysed

Source: NIST National Vulnerability Database (record CVE-2021-33120), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.