Home/CVE/NULL Pointer Dereference vulnerability in Apache Nimble. Missing validation of HCI connection complete or HCI command T
CVE

CVE-2025-53477

NULL Pointer Dereference vulnerability in Apache Nimble. Missing validation of HCI connection complete or HCI command T

NULL Pointer Dereference vulnerability in Apache Nimble. Missing validation of HCI connection complete or HCI command TX buffer could lead to NULL pointer dereference. This issue requires disabled asserts and broken or bogus Bluetooth controller and thus severity is considered low.

This issue affects Apache NimBLE: through 1.8.0. Users are recommended to upgrade to version 1.9.0, which fixes the issue.

HIGH · CVSS 7.5 EPSS 0.00459
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

1
apache nimble< 1.9.0
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · security@apache.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Jan 2026 · 10:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/apache/mynewt-nimble/commit/0caf9baeb271ede85fcc5237ab87ddbf938600daPatch
https://github.com/apache/mynewt-nimble/commit/3160b8c4c7ff8db4e0f9badcdf7df684b151e077Patch
https://lists.apache.org/thread/1dxthc132hwm2tzvjblrtnschcsbw2voMailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/01/08/3Mailing ListThird Party Advisory
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