Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2022-50212

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: do not allow CHAIN_ID to refer to another table When doing lookups for chains on the same batch by using…

Published Jun 18, 2025CWE-416EPSS 0.23%

Overview

CVE-2022-50212 is a high-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: do not allow CHAIN_ID to refer to another table

When doing lookups for chains on the same batch by using its ID, a chain

from a different table can be used. If a rule is added to a table but

refers to a chain in a different table, it will be linked to the chain in

table2, but would have expressions referring to objects in table1.

Then, when table1 is removed, the rule will not be removed as its linked to

a chain in table2. When expressions in the rule are processed or removed,

that will lead to a use-after-free.

When looking for chains by ID, use the table that was used for the lookup

by name, and only return chains belonging to that same table.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/0f49613a213d918af790c1276f79da741968de11Refgit.kernel.org/stable/c/58e863f64ee3d0879297e5e53b646e4b91e59620Refgit.kernel.org/stable/c/91501513016903077f91033fa5d2aa26cac399b2Refgit.kernel.org/stable/c/95f466d22364a33d183509629d0879885b4f547eRefgit.kernel.org/stable/c/9e7dcb88ec8e85e4a8ad0ea494ea2f90f32d2583

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50212?

CVE-2022-50212 is a high-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-50212?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-50212?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-50212?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50212 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2022

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999