CVE-2025-53477

CVE-2025-53477: Apache Mynewt NimBLE: NULL Pointer Dereference in NimBLE host HCI layer

Vendor Apache Software Foundation
Product Apache Mynewt NimBLE
Weakness CWE-476
Published January 10, 2026
Last update January 12, 2026

CVSS base score

What the vulnerability does

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.

Key dates

Disclosure timeline

January 10, 2026 CVE published
January 12, 2026 Record updated