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CVE-2026-53232

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net: phy: clean the sfp upstream if phy probing fails Sashiko reported that we don't call sfp_bus_del_upstream() in the probe f…

Published Jun 25, 2026EPSS 0.25%

Overview

CVE-2026-53232 is a high-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

net: phy: clean the sfp upstream if phy probing fails

Sashiko reported that we don't call sfp_bus_del_upstream() in the probe

failure path, so let's add it, otherwise the sfp-bus is left with a

dangling 'upstream' field, that may be used later on during SFP events.

This issue existed before the generic phylib sfp support, back when

drivers were calling phy_sfp_probe themselves.

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/0b27701ce93161d7bbf4b25fa20ca59963b0e20cRefgit.kernel.org/stable/c/12fb84dc4dc8eb47ebe2b27f7de6255a4a205e1bRefgit.kernel.org/stable/c/3a254779c169954fe23328a1db51f67be374f913Refgit.kernel.org/stable/c/48774e87bbaa0056819d4b52301e4692e50e3252Refgit.kernel.org/stable/c/9326b654f90a09eadeb796c82801a5609d57f0c8

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53232?

CVE-2026-53232 is a high-severity vulnerability. It was published on June 25, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-53232?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-53232?

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-2026-53232?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53232 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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