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CVE-2025-22108

8.6 · HIGH

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Mask the bd_cnt field in the TX BD properly The bd_cnt field in the TX BD specifies the total number of BDs for the TX…

Published Apr 16, 2025EPSS 0.37%

Overview

CVE-2025-22108 is a high-severity vulnerability. It was published on April 16, 2025 and has a CVSS 3.1 base score of 8.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

bnxt_en: Mask the bd_cnt field in the TX BD properly

The bd_cnt field in the TX BD specifies the total number of BDs for

the TX packet. The bd_cnt field has 5 bits and the maximum number

supported is 32 with the value 0.

CONFIG_MAX_SKB_FRAGS can be modified and the total number of SKB

fragments can approach or exceed the maximum supported by the chip.

Add a macro to properly mask the bd_cnt field so that the value 32

will be properly masked and set to 0 in the bd_cnd field.

Without this patch, the out-of-range bd_cnt value will corrupt the

TX BD and may cause TX timeout.

The next patch will check for values exceeding 32.

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/107b25db61122d8f990987895c2912927b8b6e3fRefgit.kernel.org/stable/c/f60b41b815826f15c4d0323f923f398c423178d0

How CyberStrike helps

Frequently asked questions

What is CVE-2025-22108?

CVE-2025-22108 is a high-severity vulnerability. It was published on April 16, 2025 and has a CVSS 3.1 base score of 8.6 (HIGH).

How severe is CVE-2025-22108?

This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-22108?

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-2025-22108?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-22108 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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