CVE-2025-21765: linux kernel from 2.6.26 (inclusive), before 5.4.291 (exclusive), from 5.5 (inclusive), before 5.10.235 (exclusive)…

Affected technology

linux kernel · from 2.6.26 (inclusive), before 5.4.291 (exclusive)
linux

linux kernel · from 5.5 (inclusive), before 5.10.235 (exclusive)
linux

linux kernel · from 5.11 (inclusive), before 5.15.179 (exclusive)
linux

linux kernel · from 5.16 (inclusive), before 6.1.129 (exclusive)
linux

linux kernel · from 6.2 (inclusive), before 6.6.79 (exclusive)
linux

linux kernel · from 6.7 (inclusive), before 6.12.16 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.13.4 (exclusive)
linux

linux kernel · 6.14 · update rc1
linux

linux kernel · 6.14 · update rc2
linux

Linux · 5578689a4e3c04f2d43ea39736fd3fa396d80c6e to before 78ad057472d8c76e0602402269222f9f9c698790, 5578689a4e3c04f2d43ea39736fd3fa396d80c6e to before d02f30d220ef9511568a48dba8a9004c65f8d904, 5578689a4e3c04f2d43ea39736fd3fa396d80c6e to before 28de355b63ad42309ed5a03ee7c436c90512265b, 5578689a4e3c04f2d43ea39736fd3fa396d80c6e to before 84212387caadb211cd9dadd6fd5563bd37dc1f5e, 5578689a4e3c04f2d43ea39736fd3fa396d80c6e to before 4176a68b0db8fc74ac14fcd00ba8231371051dc2, 5578689a4e3c04f2d43ea39736fd3fa396d80c6e to before 713a40c892f40300d63691d9f85b2a23b48fe1e8, 5578689a4e3c04f2d43ea39736fd3fa396d80c6e to before 550ed693f47370502a71b85382e7f9e6417300b8, 5578689a4e3c04f2d43ea39736fd3fa396d80c6e to before 3c8ffcd248da34fc41e52a46e51505900115fc2a
Linux

Linux · 2.6.26
Linux

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · V3.1.5 to before *
Siemens

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 · V3.1.5 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 · V3.1.5 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/ipv6/route.c

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 8.1/10) 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.