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CVE-2025-38252

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: cxl/ras: Fix CPER handler device confusion By inspection, cxl_cper_handle_prot_err() is making a series of fragile assumptions…

Published Jul 9, 2025EPSS 0.15%

Overview

CVE-2025-38252 is a high-severity vulnerability. It was published on July 9, 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:

cxl/ras: Fix CPER handler device confusion

By inspection, cxl_cper_handle_prot_err() is making a series of fragile

assumptions that can lead to crashes:

1/ It assumes that endpoints identified in the record are a CXL-type-3

device, nothing guarantees that.

2/ It assumes that the device is bound to the cxl_pci driver, nothing

guarantees that.

3/ Minor, it holds the device lock over the switch-port tracing for no

reason as the trace is 100% generated from data in the record.

Correct those by checking that the PCIe endpoint parents a cxl_memdev

before assuming the format of the driver data, and move the lock to where

it is required. Consequently this also makes the implementation ready for

CXL accelerators that are not bound to cxl_pci.

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/3c70ec71abdaf4e4fa48cd8fdfbbd864d78235a8Refgit.kernel.org/stable/c/4bcb8dd36e9e3fad6c22862ac5b6993df838309b

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38252?

CVE-2025-38252 is a high-severity vulnerability. It was published on July 9, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38252?

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-2025-38252?

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-2025-38252?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38252 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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