CVE-2021-3743

lowpriority · track · 28EPSS 0.007 · 54 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.72% (54th) EPSS

CVSS 3.6 · low

Is it mine?

39 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

An out-of-bounds (OOB) memory read flaw was found in the Qualcomm IPC router protocol in the Linux kernel. A missing sanity check allows a local attacker to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

cvss

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

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 3.6–7.1

v2.03.6lowAV:L/AC:L/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 4.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.2

v3.17.1highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-125USCWE-125US

affected products (39)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Google Android 10all versionscert_bundDEcpe:/o:google:android:10
Google Android 11all versionscert_bundDEcpe:/o:google:android:11
Google Android 12all versionscert_bundDEcpe:/o:google:android:12
Google Android 12Lall versionscert_bundDEcpe:/o:google:android:12l
Open Source Linux Kernel <=5.14.0-rc6+all versionscert_bundDE
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source Linux Kernel≤ 5.14.0-rc6+cert_bundDE
n/a Kernel≤ Affects linux kernel v5.14.0-rc6 and above.enisa_euvdEU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.7fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 4.7fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.6 «Смоленск»fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition для «Эльбрус»≤ 8.1 «Ленинград»fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 11fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU
Сообщество свободного программного обеспечения Linux4.15 → 4.19.205fstec_bduRU

showing 20 of 39

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0137Android Patchday Juni 2022Deutsch2022-06-06csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um seine Privilegien zu erhöhen, vertrauliche Informationen offenzulegen, beliebigen Code auszuführen und einen Denial-of-Service-Zustand auszulösen.
WID-SEC-W-2022-0217Linux Kernel: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2021-08-26csaf · cert_bundDE
Ein Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Informationen offenzulegen.
PUB-A-2240809272022-06-01vendor · osvUS

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund NVD CVE.org MITRE

published 2022-03-04modified 2026-06-17

references (51)

External citations — patches, advisories, analysis.

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