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CVE-2025-39935

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ASoC: codec: sma1307: Fix memory corruption in sma1307_setting_loaded() The sma1307->set.header_size is how many integers are i…

Published Oct 4, 2025CWE-787EPSS 0.14%

Overview

CVE-2025-39935 is a high-severity vulnerability. It was published on October 4, 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:

ASoC: codec: sma1307: Fix memory corruption in sma1307_setting_loaded()

The sma1307->set.header_size is how many integers are in the header

(there are 8 of them) but instead of allocating space of 8 integers

we allocate 8 bytes. This leads to memory corruption when we copy data

it on the next line:

memcpy(sma1307->set.header, data,

sma1307->set.header_size * sizeof(int));

Also since we're immediately copying over the memory in ->set.header,

there is no need to zero it in the allocator. Use devm_kmalloc_array()

to allocate the memory instead.

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/78338108b5a856dc98223a335f147846a8a18c51Refgit.kernel.org/stable/c/cd59ca8f75dbb42a67fcae975c766114644e36c4

How CyberStrike helps

Frequently asked questions

What is CVE-2025-39935?

CVE-2025-39935 is a high-severity vulnerability. It was published on October 4, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-39935?

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-2025-39935?

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-2025-39935?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-39935 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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