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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de9479bb5019306a4a41 Patch
- https://lists.apache.org/thread/5mkz68y1py0o6zmxtc3l1o8grtrb78m0 Mailing List, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · apacheNVD modified 2026-10-24 13:10
Affected (CPE criteria) 1
cpe:2.3:a:apache:nimble:*:*:*:*:*:*:*:*
References 3
- https://github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de9479bb5019306a4a41 Patch
- https://lists.apache.org/thread/5mkz68y1py0o6zmxtc3l1o8grtrb78m0 Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/07/24/11 Mailing List, Third Party Advisory