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CVE-2025-38652

7.3 · HIGH

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid out-of-boundary access in devs.path - touch /mnt/f2fs/012345678901234567890123456789012345678901234567890123…

Published Aug 22, 2025CWE-125EPSS 0.18%

Overview

CVE-2025-38652 is a high-severity vulnerability. It was published on August 22, 2025 and has a CVSS 3.1 base score of 7.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.3, 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:

f2fs: fix to avoid out-of-boundary access in devs.path

- touch /mnt/f2fs/012345678901234567890123456789012345678901234567890123

- truncate -s $((1024*1024*1024)) \

/mnt/f2fs/012345678901234567890123456789012345678901234567890123

- touch /mnt/f2fs/file

- truncate -s $((1024*1024*1024)) /mnt/f2fs/file

- mkfs.f2fs /mnt/f2fs/012345678901234567890123456789012345678901234567890123 \

-c /mnt/f2fs/file

- mount /mnt/f2fs/012345678901234567890123456789012345678901234567890123 \

/mnt/f2fs/loop

[16937.192225] F2FS-fs (loop0): Mount Device [ 0]: /mnt/f2fs/012345678901234567890123456789012345678901234567890123\xff\x01, 511, 0 - 3ffff

[16937.192268] F2FS-fs (loop0): Failed to find devices

If device path length equals to MAX_PATH_LEN, sbi->devs.path[] may

not end up w/ null character due to path array is fully filled, So

accidently, fields locate after path[] may be treated as part of

device path, result in pa

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/1b1efa5f0e878745e94a98022e8edc675a87d78eRefgit.kernel.org/stable/c/1cf1ff15f262e8baf12201b270b6a79f9d119b2dRefgit.kernel.org/stable/c/345fc8d1838f3f8be7c8ed08d86a13dedef67136Refgit.kernel.org/stable/c/3466721f06edff834f99d9f49f23eabc6b2cb78eRefgit.kernel.org/stable/c/5661998536af52848cc4d52a377e90368196edeaRefgit.kernel.org/stable/c/666b7cf6ac9aa074b8319a2b68cba7f2c30023f0Refgit.kernel.org/stable/c/70849d33130a2cf1d6010069ed200669c8651fbdRefgit.kernel.org/stable/c/755427093e4294ac111c3f9e40d53f681a0fbdaaRefgit.kernel.org/stable/c/dc0172c74bd9edaee7bea2ebb35f3dbd37a8ae80Reflists.debian.org/debian-lts-announce/2025/10/msg00007.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38652?

CVE-2025-38652 is a high-severity vulnerability. It was published on August 22, 2025 and has a CVSS 3.1 base score of 7.3 (HIGH).

How severe is CVE-2025-38652?

This vulnerability has a CVSS 3.1 base score of 7.3, 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-2025-38652?

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-2025-38652?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38652 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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