NULL pointer dereference in Apache NimBLE - CVE-2025-53477
Published: January 8, 2026
Vulnerability identifier: #VU121105
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-53477
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Note, successful exploitation of the vulnerability requires disabled asserts and broken or bogus Bluetooth controller.
Affected software
Apache NimBLE
How to mitigate CVE-2025-53477
Install updates from vendor's website.
Apache NimBLE - update to 1.9.0