NULL pointer dereference in Apache Nimble
CVE-2026-45816
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.
EPSS: 0.006 (47.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Apache Nimble
- Apache Software Foundation Nimble — versions 0
Weakness classification (CWE)
References
- security@apache.org (Patch, patch)
- security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-45816?
- CVE-2026-45816 is a high-severity vulnerability in Apache Nimble, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-07-24.
- How severe is CVE-2026-45816?
- High severity. CVSS v3 base score is 7.5 out of 10.