CVE-2026-45816

Apache NimBLE: NULL pointer dereference vulnerability in SMP LTK request

HIGH
7.5
CVSS Score
Published: July 24, 2026 at 12:11 PM UTC
Updated: October 24, 2026 at 01:10 PM UTC
1 product affected across 1 vendorNimble

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.10.0
Affected range stops below 1.10.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

Vendor AdvisoryMailing List
Source: cverecord
https://lists.apache.org/thread/psppdk5j8jnq1m4jn96tnfofspgqvzvn
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/07/24/15

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-476

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