CVE-2025-40080

In the Linux kernel, the following vulnerability has been resolved: nbd: restrict sockets to TCP and UDP Recently, syzbot started to abuse NBD with all kinds of sockets. Commit cf1b2326b734 ("nbd: verify socket is supported during setup") made sure the socket supported a shutdown() method. Explicitely accept TCP and UNIX stream sockets.

Published: 10/28/2025Modified: 7/14/2026

Related Intelligence (1)

CRITICALAi

Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP

<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-209-04.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.6 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). Siemens is preparing fix versions and recommend

CVE-2021-41617CVE-2023-28531
CISA Advisories

References (6)

https://git.kernel.org/stable/c/37ad11f20e164c23ce827dd455b42c0fdd29685chttps://git.kernel.org/stable/c/4f9e6ff6319dbcebea64b50af0304cf0ad7e97e7https://git.kernel.org/stable/c/808e2335bc1cf2293b9e36ccc94c267c81509c71https://git.kernel.org/stable/c/9f7c02e031570e8291a63162c6c046dc15ff85b0https://git.kernel.org/stable/c/c365e8f20f4201d873a70385bd919f0fb531e960https://cert-portal.siemens.com/productcert/html/ssa-019113.html