CVE-2025-53477

7.5 highEPSS 0.8%

High (7.5) in apache nimble. EPSS 0.8% chance of exploitation in the next 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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2026-01-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

apache:nimble

References

https://github.com/apache/mynewt-nimble/commit/0caf9baeb271ede85fcc5237ab87ddbf938600da
https://github.com/apache/mynewt-nimble/commit/3160b8c4c7ff8db4e0f9badcdf7df684b151e077
https://lists.apache.org/thread/1dxthc132hwm2tzvjblrtnschcsbw2vo
http://www.openwall.com/lists/oss-security/2026/01/08/3

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