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CVE-2026-45921

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse() The function mtd_parser_tplink_safeloader_parse() allocat…

Published May 27, 2026CWE-401EPSS 0.16%

Overview

CVE-2026-45921 is a medium-severity vulnerability. It was published on May 27, 2026 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:

mtd: parsers: Fix memory leak in mtd_parser_tplink_safeloader_parse()

The function mtd_parser_tplink_safeloader_parse() allocates buf via

mtd_parser_tplink_safeloader_read_table(). If the allocation for

parts[idx].name fails inside the loop, the code jumps to the err_free

label without freeing buf, leading to a memory leak.

Fix this by freeing the temporary buffer buf in the err_free label.

Compile tested only. Issue found using a prototype static analysis tool

and code review.

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/0f5e62ea5c43146eacdc6861cb1022ffae1b79bcRefgit.kernel.org/stable/c/971e9c53aed82f17a9c6a65daa4e21cc15eba5b1Refgit.kernel.org/stable/c/980ce2b02dd06a4fdf5fee38b2e14becf9cf7b8bRefgit.kernel.org/stable/c/e97f5fac8ce9a6b9ec724c97d86b0985e915fdcaRefgit.kernel.org/stable/c/ec121ad626c319085f6d40a52cd04e99b4554926

How CyberStrike helps

Frequently asked questions

What is CVE-2026-45921?

CVE-2026-45921 is a medium-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-45921?

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-2026-45921?

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-2026-45921?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-45921 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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