CVE-2026-53209high

CVE-2026-53209: fallo de gravedad alta en Linux

Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend

Publicada el · Actualizada el

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 7.8epss 0.1%
probabilidad de explotación
0.1%top 98% de las CVE
explotación observada
noninguna fuente lo reporta
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Productos afectados
Linux · Linux
CVEs relacionadas — Linux

En el mismo producto, de las más peligrosas a las menos.

CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2024-53150HIGHALSA: usb-audio: Fix out of bounds reads when finding clock sourcesEPSS 1.4%KEV
Referencias
https://git.kernel.org/stable/c/02f50e8bb69f9b22516163a09922f5537d3b12d1https://git.kernel.org/stable/c/10b0e832cc05d7aef4b92bed912cbd4a395d0862https://git.kernel.org/stable/c/1338ee049a8910ba6c9cee963920e978e6893c7dhttps://git.kernel.org/stable/c/5c65b96b549ea2dcfde497436bf9e048deb87758https://git.kernel.org/stable/c/cdd8bbdbee763fdf5bf343e6f7d4e79347739f62https://git.kernel.org/stable/c/dafc9f57140e66a10945127aa7433c3d715dc253