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CVE-2022-50007

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: xfrm: fix refcount leak in __xfrm_policy_check() The issue happens on an error path in __xfrm_policy_check().

Published Jun 18, 2025EPSS 0.25%

Overview

CVE-2022-50007 is a medium-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

xfrm: fix refcount leak in __xfrm_policy_check()

The issue happens on an error path in __xfrm_policy_check(). When the

fetching process of the object `pols[1]` fails, the function simply

returns 0, forgetting to decrement the reference count of `pols[0]`,

which is incremented earlier by either xfrm_sk_policy_lookup() or

xfrm_policy_lookup(). This may result in memory leaks.

Fix it by decreasing the reference count of `pols[0]` in that path.

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/0769491a8acd3e85ca4c3f65080eac2c824262dfRefgit.kernel.org/stable/c/1305d7d4f35ca6f214a2d23b075aa6a924cff3beRefgit.kernel.org/stable/c/18e6b6e2555c93f5ca09f2b85ef1fa025c8acceaRefgit.kernel.org/stable/c/26ad2398fe4984f4f6f930bcb3bc9047fa77265bRefgit.kernel.org/stable/c/63da7a2bbf3f28094920e0b8a17d2571a9bd842dRefgit.kernel.org/stable/c/8f94b933103ee1bda119543369cc18a1be5536dbRefgit.kernel.org/stable/c/9c9cb23e00ddf45679b21b4dacc11d1ae7961ebeRefgit.kernel.org/stable/c/d66c052879791313f90c0584420f196a038fb8b8

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50007?

CVE-2022-50007 is a medium-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50007?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-50007?

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-2022-50007?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50007 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.

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