Severity: low
Affected versions:
- Apache NimBLE through 1.9.0
Description:
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
vulnerability in Apache NimBLE.
The HCI socket transport did not check whether a received HCI event would fit
the configured event pool before copying it, allowing a buffer overflow.
Severity is low: exploitation requires either a misconfigured pool size or a
malicious/compromised controller on the other end of the HCI socket link, not
over-the-air Bluetooth access.
This issue affects Apache NimBLE: through 1.9.0.
Users are recommended to upgrade to version 1.10.0, which fixes the issue.
Credit:
Yicheng Yang, Secsys Lab, Fudan University (reporter)
References:
https://github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de9479bb5019306a4a41
https://mynewt.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-45811
