High [CVE-2026-45811] Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Apache NimBLE
This high-severity Apache Software Foundation advisory covers CVE-2026-45811 affecting Apache NimBLE.
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Summary
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.
- through 1.9.0
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
- 1.10.0
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
Mitigation checklist
- Users are recommended to upgrade to version 1.10.0, which fixes the issue.
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
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