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CVE-2026-53150

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Reject zero-length property entries in validator tb_property_entry_valid() accepts entries with length == 0 for DI…

Published Jun 25, 2026CWE-191EPSS 0.13%

Overview

CVE-2026-53150 is a medium-severity vulnerability. It was published on June 25, 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:

thunderbolt: Reject zero-length property entries in validator

tb_property_entry_valid() accepts entries with length == 0 for

DIRECTORY, DATA, and TEXT types. A zero-length TEXT entry passes

validation but causes an underflow in the null-termination logic:

property->value.text[property->length * 4 - 1] = '\0';

When property->length is 0 this writes to offset -1 relative to

the allocation.

Reject zero-length entries early in the validator since they have no

valid representation in the XDomain property protocol.

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/2e0ddac549ebd713eb9f4a15b6496e3440a17d8bRefgit.kernel.org/stable/c/35d6c9252a152e756768a26dbf216b9dd9dd8e92Refgit.kernel.org/stable/c/3b6e68cb97f725385010264a873e14a3921b6b8aRefgit.kernel.org/stable/c/581c2053ab4dbe27e83c9e62deb4c73aa8dc0c3aRefgit.kernel.org/stable/c/5f56bc6bddffe8710ba0ba8844023b5a44ca90e4Refgit.kernel.org/stable/c/99d9dbad1463afb510d42c9714f846361d1b726dRefgit.kernel.org/stable/c/ca11e7da4fba4b394f69e16448f4463c44c84de6Refgit.kernel.org/stable/c/cff8eb65d1eafe7793e54b4d0cf6bf831644630b

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53150?

CVE-2026-53150 is a medium-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-53150?

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-2026-53150?

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-2026-53150?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53150 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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