Incorrect Calculation of Buffer Size vulnerability in Apache NimBLE when processing Legacy Advertising Report HCI event. When a single HCI advertising report event bundles multiple reports, NimBLE miscalculated the offset to the next report. This can cause the host to read past the end of the buffer and deliver a GAP event with bogus data to the application. Severity is low: NimBLE's own controller never batches multiple reports into one event, so this only matters when NimBLE's host is paired with a third-party controller that does. 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/605c7585408bc3674818eeb7b6f478a8aefe9746 Patch
- https://lists.apache.org/thread/rll5m1ly2vg8jr76lp5ohrtspr5vlofy 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 6.5 · 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/605c7585408bc3674818eeb7b6f478a8aefe9746 Patch
- https://lists.apache.org/thread/rll5m1ly2vg8jr76lp5ohrtspr5vlofy Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/07/24/12 Mailing List, Third Party Advisory