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.
Affected products
apache: nimble
References3
- lists.apache.org/thread/5mkz68y1py0o6zmxtc3l1o8grtrb78m0 Mailing ListVendor Advisory
- github.com/apache/mynewt-nimble/commit/dcc4e4f026109eecd507de94… Patch
- www.openwall.com/lists/oss-security/2026/07/24/11 Mailing ListThird Party Advisory
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 42 · as of 14 November 2026
- CWE
- CWE-120
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