CVE-2026-45813: Apache NimBLE: Incorrect data validation in BASS add/modify source operation

[Szymon Janc <janc () apache org>]

Severity: important 

Affected versions:

- Apache NimBLE through 1.9.0

Description:

Out-of-bounds Write, Integer Underflow (Wrap or Wraparound) vulnerability in Apache NimBLE BASS service.
Improper validation when parsing BASS service  "Add Source" and "Modify Source" operation PDU could results in stack 
buffer overflow or arbitrary out-of-bound read.


This can be triggered by nearby devices over Bluetooth connection, however pairing is required prior to accessing BASS 
service, which depending on device configuration may or may not require user action.

This issue affects Apache NimBLE: through 1.9.0.

Users are recommended to upgrade to version 1.10.0, which fixes the issue.

Credit:

VulnCheck (reporter)
侯朋朋 <pengpeng () iscas ac cn> (reporter)

References:

https://github.com/apache/mynewt-nimble/pull/2232
https://mynewt.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-45813