Low 3.1Published Jan 10, 2026

CVE-2025-53470Apache Mynewt NimBLE: Out-of-Bounds Write Vulnerability in NimBLE HCI H4 driver

Updated under an hour ago (Oct 27, 2026, 11:40 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

Out-of-bounds Read vulnerability in Apache NimBLE HCI H4 driver. Specially crafted HCI event could lead to invalid memory read in H4 driver. This issue affects Apache NimBLE: through 1.8. This issue requires a broken or bogus Bluetooth controller and thus severity is considered low. Users are recommended to upgrade to version 1.9, which fixes the issue.

CVSS: 3.1 LOW (v3.1, CISA ADP)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-125
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	CNA record
apache nimble apache:nimble	before 1.9.0	NVD

References

References

https://github.com/apache/mynewt-nimble/commit/b973df0c6cf7b30efbf8eb2cafdc1ee843464b76	patch
https://lists.apache.org/thread/32sm0944dyod4sdql77stgyw9xb2msc0	vendor-advisory, mailing-list
http://www.openwall.com/lists/oss-security/2026/01/08/2	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.