High 7.5Published Jan 10, 2026

CVE-2025-53477Apache Mynewt NimBLE: NULL Pointer Dereference in NimBLE host HCI layer

Updated under an hour ago (Oct 27, 2026, 7:40 PM ET)

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It affects Apache Software Foundation Apache Mynewt NimBLE and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Apache Software Foundation Apache Mynewt NimBLE

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-476
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Analyzed
Record last updated: Jan 12, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache Mynewt NimBLE apache_software_foundation:apache_mynewt_nimble (from the name)	through 1.8.0	CNA record
apache nimble apache:nimble	before 1.9.0	NVD

References

References

https://github.com/apache/mynewt-nimble/commit/0caf9baeb271ede85fcc5237ab87ddbf938600da	patch
https://github.com/apache/mynewt-nimble/commit/3160b8c4c7ff8db4e0f9badcdf7df684b151e077	patch
https://lists.apache.org/thread/1dxthc132hwm2tzvjblrtnschcsbw2vo	vendor-advisory, mailing-list
http://www.openwall.com/lists/oss-security/2026/01/08/3	mailing-list, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.