CVE-2021-33120

mediumpriority · track · 22EPSS 0.009 · 61 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.95% (61st) EPSS

CVSS 5.5 · medium

Is it mine?

43 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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

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

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.5mediumAV:N/AC:L/Au:S/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 8 · impact 4.9

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Lprimary · NVD / NIST USexploitability 2.8 · impact 2.5

v3.15.4mediumAV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Lsecondary · FSTEC (BDU) RU

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Lsecondary · ENISA EU

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Lsecondaryexploitability 2.8 · impact 2.5

v3.15mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USprimaryCWE-125US

affected products (43)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Citrix Systems Hypervisorall versionscert_bundDEcpe:/o:citrix:hypervisor:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
HPE ProLiantall versionscert_bundDEcpe:/h:hp:proliant:-
HPE Synergyall versionscert_bundDEcpe:/h:hpe:synergy:-
IBM QRadar SIEMall versionscert_bundDEcpe:/a:ibm:qradar_siem:-
Intel Prozessorall versionscert_bundDEcpe:/h:intel:intel_prozessor:-
Lenovo BIOSall versionscert_bundDEcpe:/h:lenovo:bios:-
Lenovo Computerall versionscert_bundDEcpe:/o:lenovo:lenovo_computer:-
NetApp Data ONTAPall versionscert_bundDEcpe:/a:netapp:data_ontap:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
n/a Intel Atom(R) processors≤ See referencesenisa_euvdEU
Intel Corp. Intel Microcode≤ 3.20220207.1fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.6 «Смоленск»fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.7fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 11fstec_bduRU
intel atom p5921b firmwareall versionsnvdUScpe:2.3:o:intel:atom_p5921b_firmware:*:*:*:*:*:*:*:*
intel atom p5931b firmwareall versionsnvdUScpe:2.3:o:intel:atom_p5931b_firmware:*:*:*:*:*:*:*:*

showing 20 of 43

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0391Intel Prozessoren: Mehrere SchwachstellenDeutsch2022-02-08csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in Intel Prozessoren ausnutzen, um einen Denial of Service Angriff durchzuführen und vertrauliche Informationen offenzulegen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2022-02-09modified 2026-06-17

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+11867 more

references (18)

External citations — patches, advisories, analysis.

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