CVE-2025-53477
January 10, 2026
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.
Affected Packages
https://github.com/apache/mynewt-nimble.git (GITHUB):
Affected version(s) >=nimble_1_0_0_rc1_tag <nimble_1_9_0_tagFix Suggestion:
Update to version nimble_1_9_0_tagRelated Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.1
Attack Vector
ADJACENT
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
NULL Pointer Dereference
EPSS
Base Score:
0.47
