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CVE-2025-53470

LowCVSS 3.1 / 10
Published Jan 10, 2026·Last modified Apr 12, 2026
Affected Components(0)

No affected components available

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.

Risk Scores
Base Score
3.1

The vulnerability can be exploited over a local network, such as Wi-Fi. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information.

Threat Intelligence
2.9

Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.

EPSS
0.33%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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