CVE-2022-20409

mediumpriority · track · 37EPSS 0.006 · 51 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.65% (51st) EPSS

CVSS 6.7 · medium

Is it mine?

11 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

In io_identity_cow of io_uring.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-238177383References: Upstream kernel

cvss

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

6.7

010

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

v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 0.8 · impact 5.9

v3.16.7mediumAV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.16.3mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416USprimaryCWE-416US

exploits (1)

Public proof-of-concept and weaponised exploit code.

Markakd/bad_io_uringAndroid kernel exploitation for CVE-2022-20409PoC · poc_in_github

affected products (11)

Products and version ranges known to be affected.

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
Google Android 13all versionscert_bundDEcpe:/o:google:android:13
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
n/a Android≤ Android kernelenisa_euvdEU
Сообщество свободного программного обеспечения Linux≤ 5.11fstec_bduRU
Сообщество свободного программного обеспечения Linux5.10.0 → 5.10.133fstec_bduRU
google androidall versionsnvdUScpe:2.3:o:google:android:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-1599Android Patchday October 2022Deutsch2022-10-03csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um seine Privilegien zu erhöhen, vertrauliche Informationen offenzulegen und einen Denial of Service Zustand zu verursachen.
ASB-A-2381773832022-10-01vendor · osvUS
In io_identity_cow of io_uring.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

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 NVD CVE.org MITRE

published 2022-10-11modified 2026-06-17

related (12,235)

Related entries.

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+12230 more

references (8)

External citations — patches, advisories, analysis.

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