CVE-2022-49589

Name: CVE-2022-49589
Creator: NVD / NIST
Published: 2025-02-26T07:01:34.47+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2022-49589 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: igmp: Fix data-races around sysctl_igmp_qrv. While reading sysctl_igmp_qrv, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. This test can be packed into a helper, so such changes will be in the follow-up series after net is merged into net-next. qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv);. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: igmp: Fix data-races around sysctl_igmp_qrv. While reading sysctl_igmp_qrv, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. This test can be packed into a helper, so such changes will be in the follow-up series after net is merged into net-next. qrv ?: READ_ONCE(net->ipv4.sysctl_igmp_qrv);

Metrics

CVSS 3.1

4.7/10

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

EPSS Probability

0.18%

7.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	>= 3.18, < 4.19.255	—
Linux	Linux Kernel	>= 4.20, < 5.4.209	—
Linux	Linux Kernel	>= 5.5, < 5.10.135	—
Linux	Linux Kernel	>= 5.11, < 5.15.59	—
Linux	Linux Kernel	>= 5.16, < 5.18.15	—
Linux	Linux Kernel	5.19	Rc1

References

https://git.kernel.org/stable/c/8ebcc62c738f68688ee7c6fec2efe5bc6d3d7e60Mailing List, Patch
https://git.kernel.org/stable/c/9eeb3a7702998bdccbfcc37997b5dd9215b9a7f7Mailing List, Patch
https://git.kernel.org/stable/c/b399ffafffba39f47b731b26a5da1dc0ffc4b3adMailing List, Patch
https://git.kernel.org/stable/c/c2954671010cd1127d1ffa328c6e6f8e99930982Mailing List, Patch
https://git.kernel.org/stable/c/c721324afc589f8ea54bae04756b150aeaae5fa4Mailing List, Patch
https://git.kernel.org/stable/c/e20dd1b0e0ea15bee1e528536a0840dba972ca0eMailing List, Patch

Timeline

Published: Feb 26, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-49589?

How severe is CVE-2022-49589?

CVE-2022-49589 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2022-49589?

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-2022-49589?

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

Scan your code now

Source: NVD / NIST