CVE-2022-49590

Name: CVE-2022-49590
Creator: NVD / NIST
Published: 2025-02-26T07:01:34.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2022-49590 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_llm_reports. While reading sysctl_igmp_llm_reports, 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. if (ipv4_is_local_multicast(pmc->multiaddr) && !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports)). 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_llm_reports. While reading sysctl_igmp_llm_reports, 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. if (ipv4_is_local_multicast(pmc->multiaddr) && !READ_ONCE(net->ipv4.sysctl_igmp_llm_reports))

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	>= 4.3, < 4.9.325	—
Linux	Linux Kernel	>= 4.10, < 4.14.290	—
Linux	Linux Kernel	>= 4.15, < 4.19.254	—
Linux	Linux Kernel	>= 4.20, < 5.4.208	—
Linux	Linux Kernel	>= 5.5, < 5.10.134	—
Linux	Linux Kernel	>= 5.11, < 5.15.58	—
Linux	Linux Kernel	>= 5.16, < 5.18.15	—
Linux	Linux Kernel	5.19	Rc1

References

https://git.kernel.org/stable/c/1656ecaddf90e2a070ec2d2404cdae3edf80facaMailing List, Patch
https://git.kernel.org/stable/c/260446eb8e5541402b271343a4516f2b33dec1e4Mailing List, Patch
https://git.kernel.org/stable/c/46307adceb67bdf2ec38408dd9cebc378a6b5c46Mailing List, Patch
https://git.kernel.org/stable/c/473aad9ad57ff760005377e6f45a2ad4210e08ceMailing List, Patch
https://git.kernel.org/stable/c/a84b4afaca2573ed3aed1f8854aefe3ca5a82e72Mailing List, Patch
https://git.kernel.org/stable/c/d77969e7d4ccc26bf1f414a39ef35050a83ba6d5Mailing List, Patch
https://git.kernel.org/stable/c/ed876e99ccf417b8bd7fd8408ba5e8b008e46cc8Mailing List, Patch
https://git.kernel.org/stable/c/f6da2267e71106474fbc0943dc24928b9cb79119Mailing List, Patch

Timeline

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

Frequently Asked Questions

What is CVE-2022-49590?

How severe is CVE-2022-49590?

CVE-2022-49590 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-2022-49590?

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-2022-49590?

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

Scan your code now

Source: NVD / NIST