CVE-2022-20409

Name: CVE-2022-20409
Creator: NVD / NIST
Published: 2022-10-11T20:15:11.053+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2022-20409 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

6.7/10

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

EPSS Probability

0.56%

42.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Google	Android	All versions

References

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=2ee0cab11f6626071f8a64c7792406dabdd94c8dMailing List, Patch, Third Party Advisory
https://source.android.com/security/bulletin/2022-10-01Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=2ee0cab11f6626071f8a64c7792406dabdd94c8dMailing List, Patch, Third Party Advisory
https://source.android.com/security/bulletin/2022-10-01Patch, Vendor Advisory

Timeline

Published: Oct 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-20409?

How severe is CVE-2022-20409?

CVE-2022-20409 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2022-20409?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-20409?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST