CVE-2025-53470

Low

Description

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.

SeverityLow

CVSS3.1

Exploit probability—

Product

Apache Nimble

PublishedJan 10, 2026

First seenJan 10, 2026

Weakness typeCWE-125Out-of-bounds read

How to fix

Update

apache nimble1.9.0 or later

Patches

github.com/apache/mynewt-nimble/commit/b973df0c6cf7b30efbf8eb2cafdc1ee843464b76

Vendor advisories

lists.apache.org/thread/32sm0944dyod4sdql77stgyw9xb2msc0

Affected products

Product	Affected versions	Fixed in
apache nimble	v < 1.9.0	1.9.0

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