Read the docs
TI-2026-33550 Aliases CVE-2026-45816GHSA-r25p-7q83-xfq4

Apache NimBLE: NULL pointer dereference vulnerability in SMP LTK request

Priority MEDIUM 41CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-476.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0103 63rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache NimBLEup to 1.9.0—No fix listedCNA
  • Apache NimBLE VendorApache Affected up to 1.9.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:nimble:*:*:*:*:*:*:*:*before 1.10.0VulnerableApache
  • cpe:2.3:a:apache:nimble:*:*:*:*:*:*:*:* Versions before 1.10.0 Vulnerable ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-45816
  2. 2026-10-03 Alias added: GHSA-r25p-7q83-xfq4

References

Patch 1

Advisory 2

  • TI-2024-16263 Apache NimBLE: Denial of service in NimBLE Bluetooth stack CVSS 3.1HIGH 7.5
  • TI-2026-33549 Apache NimBLE: Remote reachable assertion in ATT Read Multiple Variable Response handler CVSS 3.1HIGH 7.5
  • TI-2026-33548 Apache NimBLE: Incorrect data validation in BASS add/modify source operation CVSS 3.1HIGH 8.8
  • TI-2024-34484 Apache NimBLE: Lack of input sanitization leading to out-of-bound reads in Number of Completed Packets HCI event handler CVSS 3.1HIGH 7.5
  • TI-2025-33422 Apache Mynewt NimBLE: NULL Pointer Dereference in NimBLE host HCI layer CVSS 3.1HIGH 7.5
  • TI-2025-32572 Apache Mynewt NimBLE: Invalid error handling in pause encryption procedure in NimBLE controller CVSS 3.1HIGH 7.5
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences