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CVE-2023-53298

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: nfc: fix memory leak of se_io context in nfc_genl_se_io The callback context for sending/receiving APDUs to/from the selected s…

Published Sep 16, 2025CWE-401EPSS 0.15%

Overview

CVE-2023-53298 is a medium-severity vulnerability. It was published on September 16, 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:

nfc: fix memory leak of se_io context in nfc_genl_se_io

The callback context for sending/receiving APDUs to/from the selected

secure element is allocated inside nfc_genl_se_io and supposed to be

eventually freed in se_io_cb callback function. However, there are several

error paths where the bwi_timer is not charged to call se_io_cb later, and

the cb_context is leaked.

The patch proposes to free the cb_context explicitly on those error paths.

At the moment we can't simply check 'dev->ops->se_io()' return value as it

may be negative in both cases: when the timer was charged and was not.

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/25ff6f8a5a3b8dc48e8abda6f013e8cc4b14ffeaRefgit.kernel.org/stable/c/271eed1736426103335c5aac50f15b0f4d236bc0Refgit.kernel.org/stable/c/5321da6d84b87a34eea441677d649c34bd854169Refgit.kernel.org/stable/c/8978315cb4bf8878c9c8ec05dafd8f7ff539860dRefgit.kernel.org/stable/c/af452e35b9e6a87cd49e54a7a3d60d934b194651Refgit.kernel.org/stable/c/b2036a252381949d3b743a3de069324ae3028a57Refgit.kernel.org/stable/c/ba98db08895748c12e5ded52cd1598dce2c79e55Refgit.kernel.org/stable/c/c494365432dcdc549986f4d9af9eb6190cbdb153

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53298?

CVE-2023-53298 is a medium-severity vulnerability. It was published on September 16, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53298?

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-2023-53298?

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-2023-53298?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53298 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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