Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-80586

Gravedad CVSS v3.1:
CRÍTICA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
26/08/2026
Última modificación:
27/08/2026

Descripción

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> mptcp: options: reset DSS fields in case of unexpected size<br /> <br /> A remote peer could send a malformed DSS with a wrong size, followed by<br /> another DSS or MPC + Data. In this case, the first suboption will be<br /> ignored, but leaving some fields written, which could lead to<br /> inconsistency or access uninitialized data.<br /> <br /> Explicitly reset the fields that could have been modified in case of<br /> unexpected size.