P4Verified

CVE-2025-21764: linux kernel from 3.9 (inclusive), before 5.4.291 (exclusive), from 5.5 (inclusive), before 5.10.235 (exclusive), from…

CVE-2025-21764. CVSS 3.1 base score 7.8 (HIGH, Source advisory). EPSS 0.00261 (percentile 0.16572), scored 14-Oct-2026.

Affected technology

linux kernel · from 3.9 (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 · de09334b9326632bbf1a74bfd8b01866cbbf2f61 to before 96fc896d0e5b37c12808df797397fb16f3080879, de09334b9326632bbf1a74bfd8b01866cbbf2f61 to before c30893ef3d9cde8e7e8e4fd06b53d2c935bbccb1, de09334b9326632bbf1a74bfd8b01866cbbf2f61 to before b870256dd2a5648d5ed2f22316b3ac29a7e5ed63, de09334b9326632bbf1a74bfd8b01866cbbf2f61 to before 3c2d705f5adf5d860aaef90cb4211c0fde2ba66d, de09334b9326632bbf1a74bfd8b01866cbbf2f61 to before 9e0ec817eb41a55327a46cd3ce331a9868d60304, de09334b9326632bbf1a74bfd8b01866cbbf2f61 to before bbec88e4108e8d6fb468d3817fa652140a44ff28, de09334b9326632bbf1a74bfd8b01866cbbf2f61 to before cd1065f92eb7ff21b9ba5308a86f33d1670bf926, de09334b9326632bbf1a74bfd8b01866cbbf2f61 to before 628e6d18930bbd21f2d4562228afe27694f66da9
Linux

Linux · 3.9
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/ipv6/ndisc.c

Attack conditions (Source advisory, 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 7.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 15-Oct-2026 09:20 UTC

CWE: CWE-416
CCR priority: 31.3 /100 (P4)
CVSS 3.1: 7.8 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Source advisory
EPSS: 0.00261 · percentile 0.16572 · 2026-10-14
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-15 09:24:28.011626+00:00 UTC
GitHub Advisory Database · Source record · observed 2026-10-15 10:43:56.988652+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-15 09:18:22.406219+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-21764.html