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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-53209 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend Existing advertising instances can already hold the maximum extended advertising payload. When hci_adv_bcast_annoucement() prepends the Broadcast Announcement service data to that payload, the combined data may no longer fit in the temporary buffer used to rebuild the advertising data. Reject that case before copying the existing payload and report the failure through the device log. This keeps the existing advertising data intact and avoids overrunning the temporary buffer.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/02f50e8bb69f9b22516163a09922f5537d3b12d1 kernel.org
https://git.kernel.org/stable/c/10b0e832cc05d7aef4b92bed912cbd4a395d0862 kernel.org
https://git.kernel.org/stable/c/1338ee049a8910ba6c9cee963920e978e6893c7d kernel.org
https://git.kernel.org/stable/c/5c65b96b549ea2dcfde497436bf9e048deb87758 kernel.org
https://git.kernel.org/stable/c/cdd8bbdbee763fdf5bf343e6f7d4e79347739f62 kernel.org
https://git.kernel.org/stable/c/dafc9f57140e66a10945127aa7433c3d715dc253 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-53209
NVD Published Date:
06/25/2026
NVD Last Modified:
06/28/2026
Source:
kernel.org