CVE-2026-45816 — HIGH (7.5)

Q: How severe is CVE-2026-45816?

CVE-2026-45816 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-45816?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Nimble.

Vulnerability Description

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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apache	Nimble	< 1.10.0

Related Weaknesses (CWE)

CWE-476

References

https://github.com/apache/mynewt-nimble/commit/9448c5f495eb55018121b24a9dab5305cPatch
https://lists.apache.org/thread/psppdk5j8jnq1m4jn96tnfofspgqvzvnMailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/07/24/15Mailing ListThird Party Advisory

FAQ

What is CVE-2026-45816?

CVE-2026-45816 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 misbeh...

How severe is CVE-2026-45816?

CVE-2026-45816 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-45816?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Nimble.