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CVE-2023-52927

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: netfilter: allow exp not to be removed in nf_ct_find_expectation Currently nf_conntrack_in() calling nf_ct_find_expectation() w…

Published Mar 14, 2025CWE-416EPSS 0.32%

Overview

CVE-2023-52927 is a high-severity vulnerability. It was published on March 14, 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: allow exp not to be removed in nf_ct_find_expectation

Currently nf_conntrack_in() calling nf_ct_find_expectation() will

remove the exp from the hash table. However, in some scenario, we

expect the exp not to be removed when the created ct will not be

confirmed, like in OVS and TC conntrack in the following patches.

This patch allows exp not to be removed by setting IPS_CONFIRMED

in the status of the tmpl.

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/3fa58a6fbd1e9e5682d09cdafb08fba004cb12ecRefgit.kernel.org/stable/c/4914109a8e1e494c6aa9852f9e84ec77a5fc643fRefseadragnol.github.io/posts/CVE-2023-52927/Reflists.debian.org/debian-lts-announce/2025/05/msg00045.htmlRefcert-portal.siemens.com/productcert/html/ssa-019113.htmlRefcert-portal.siemens.com/productcert/html/ssa-082556.html

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52927?

CVE-2023-52927 is a high-severity vulnerability. It was published on March 14, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-52927?

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-2023-52927?

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-2023-52927?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52927 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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