CVE-2025-21706: linux kernel from 5.18 (inclusive), before 6.1.129 (exclusive), from 6.2 (inclusive), before 6.6.78 (exclusive), from…

Affected technology

linux kernel · from 5.18 (inclusive), before 6.1.129 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.78 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.13 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.13.2 (exclusive)
linux

Linux · 73c762c1f07dacba4fd1cefd15e24b419d42320d to before 22b0734c9401a74ed4ebd9e8ef0da33e493852eb, 73c762c1f07dacba4fd1cefd15e24b419d42320d to before de3b8d41d2547452c4cafb146d003fa4689fbaf2, 73c762c1f07dacba4fd1cefd15e24b419d42320d to before 8ac344cbd84fda75e05e1f445f7f8fb24dc175e1, 73c762c1f07dacba4fd1cefd15e24b419d42320d to before 9e3d61620a3cd033319553b980ff3a350adbe1bc, 73c762c1f07dacba4fd1cefd15e24b419d42320d to before 1bb0d1348546ad059f55c93def34e67cb2a034a6
Linux

Linux · 5.18
Linux

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.6 to before *
Siemens

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.7 to before *
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.6 to before *
Siemens

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · V3.1.7 to before *
Siemens

SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · 0 to before *
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.6 to before *
Siemens

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · V3.1.7 to before *
Siemens

Component: Not specified by the source
File: net/mptcp/pm_netlink.c

Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

NVD’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.