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CVE-2025-53477

7.5 · HIGH

NULL Pointer Dereference vulnerability in Apache Nimble.

Published Jan 10, 2026CWE-476EPSS 0.81%

Overview

CVE-2025-53477 is a high-severity vulnerability. It was published on January 10, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

NULL Pointer Dereference vulnerability in Apache Nimble.

Missing validation of HCI connection complete or HCI command TX buffer could lead to NULL pointer dereference.

This issue requires disabled asserts and broken or bogus Bluetooth controller and thus severity is considered low.

This issue affects Apache NimBLE: through 1.8.0.

Users are recommended to upgrade to version 1.9.0, which fixes the issue.

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

GitHubgithub.com/apache/mynewt-nimble/commit/0caf9baeb271ede85fcc5237ab87ddbf938600daGitHubgithub.com/apache/mynewt-nimble/commit/3160b8c4c7ff8db4e0f9badcdf7df684b151e077Reflists.apache.org/thread/1dxthc132hwm2tzvjblrtnschcsbw2voRefwww.openwall.com/lists/oss-security/2026/01/08/3

How CyberStrike helps

Frequently asked questions

What is CVE-2025-53477?

CVE-2025-53477 is a high-severity vulnerability. It was published on January 10, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-53477?

This vulnerability has a CVSS 3.1 base score of 7.5, 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-2025-53477?

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-2025-53477?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-53477 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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