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CVE-2025-39778

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: objtool, nvmet: Fix out-of-bounds stack access in nvmet_ctrl_state_show() The csts_state_names[] array only has six sparse entr…

Published Apr 18, 2025CWE-125EPSS 0.25%

Overview

CVE-2025-39778 is a high-severity vulnerability. It was published on April 18, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, 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:

objtool, nvmet: Fix out-of-bounds stack access in nvmet_ctrl_state_show()

The csts_state_names[] array only has six sparse entries, but the

iteration code in nvmet_ctrl_state_show() iterates seven, resulting in a

potential out-of-bounds stack read. Fix that.

Fixes the following warning with an UBSAN kernel:

vmlinux.o: warning: objtool: .text.nvmet_ctrl_state_show: unexpected end of section

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/0cc0efc58d6c741b2868d4af24874d7fec28a575Refgit.kernel.org/stable/c/107a23185d990e3df6638d9a84c835f963fe30a6Refgit.kernel.org/stable/c/1adc93a525fdee8e2b311e6d5fd93eb69714ca05Refgit.kernel.org/stable/c/8fbf37a3577b4d64c150cafde338eee17b2f2ea4

How CyberStrike helps

Frequently asked questions

What is CVE-2025-39778?

CVE-2025-39778 is a high-severity vulnerability. It was published on April 18, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2025-39778?

This vulnerability has a CVSS 3.1 base score of 7.1, 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-2025-39778?

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-2025-39778?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-39778 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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