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CVE-2025-38277

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mtd: nand: ecc-mxic: Fix use of uninitialized variable ret If ctx->steps is zero, the loop processing ECC steps is skipped, and…

Published Jul 10, 2025CWE-908EPSS 0.19%

Overview

CVE-2025-38277 is a medium-severity vulnerability. It was published on July 10, 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:

mtd: nand: ecc-mxic: Fix use of uninitialized variable ret

If ctx->steps is zero, the loop processing ECC steps is skipped,

and the variable ret remains uninitialized. It is later checked

and returned, which leads to undefined behavior and may cause

unpredictable results in user space or kernel crashes.

This scenario can be triggered in edge cases such as misconfigured

geometry, ECC engine misuse, or if ctx->steps is not validated

after initialization.

Initialize ret to zero before the loop to ensure correct and safe

behavior regardless of the ctx->steps value.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

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/49482f4a39620f6afedcd3f6aa9e0d558b6a460bRefgit.kernel.org/stable/c/4d9d6e4be09472aa72953caca3dbefdc27846170Refgit.kernel.org/stable/c/7a23cc510ecaabab4f6df7e9d910d16e279b72adRefgit.kernel.org/stable/c/a0d9d9b5a4634e146ae41cb25667322e5c7d74d2Refgit.kernel.org/stable/c/d95846350aac72303036a70c4cdc69ae314aa26dReflists.debian.org/debian-lts-announce/2025/10/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38277?

CVE-2025-38277 is a medium-severity vulnerability. It was published on July 10, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-38277?

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-2025-38277?

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-2025-38277?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38277 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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