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TI-2026-33547 Aliases CVE-2026-45812GHSA-m9xh-wpcw-qvx9

Apache NimBLE: OOB Read via sizeof(pointer) in Legacy Advertising Report Handler

Priority LOW 30CWE-131Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

Incorrect Calculation of Buffer Size vulnerability in Apache NimBLE when processing Legacy Advertising Report HCI event. When a single HCI advertising report event bundles multiple reports, NimBLE miscalculated the offset to the next report. This can cause the host to read past the end of the buffer and deliver a GAP event with bogus data to the application. Severity is low: NimBLE's own controller never batches multiple reports into one event, so this only matters when NimBLE's host is paired with a third-party controller that does. 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 0.00694 53rd 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
No
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-2026-45812
  2. 2026-10-03 Alias added: GHSA-m9xh-wpcw-qvx9

References

Patch 1

Advisory 2

  • TI-2024-16263 Apache NimBLE: Denial of service in NimBLE Bluetooth stack CVSS 3.1HIGH 7.5
  • TI-2026-33550 Apache NimBLE: NULL pointer dereference vulnerability in SMP LTK request 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
See all 14 →

Sources

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