CVE-2025-21707: linux kernel from 5.11 (inclusive), before 6.1.129 (exclusive), from 6.2 (inclusive), before 6.6.76 (exclusive), from…

Affected technology

linux kernel · from 5.11 (inclusive), before 6.1.129 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.76 (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 · 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc to before 3a7fda57b0f91f7ea34476b165f91a92feb17c96, 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc to before 3b5332d416d151a15742d1b16e7319368e3cc5c6, 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc to before 7f6c72b8ef8130760710e337dc8fbe7263954884, 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc to before 6169e942370b4b6f9442d35c51519bf6c346843b, 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc to before ba0518f9e8688cd4fcb569e8df2a74874b4f3894, 84dfe3677a6f45b3d0dfdd564e55717a1a5e60cc to before c86b000782daba926c627d2fa00c3f60a75e7472
Linux

Linux · 5.11
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/options.c, net/mptcp/protocol.h

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

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

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. 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.