CVE-2026-45816: Apache Nimble

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

NULL Pointer Dereference vulnerability in Apache NimBLE in LE Long Term Key Request event. This requires disabled asserts (otherwise assert would trigger before NULL dereference) and bogus (or misbehaving) controller, thus severity is low. 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: before 1.10.0 (fixed in 1.10.0)

Published 2026-07-24. Last modified 2026-07-27.