CVE-2025-21763

HIGH

In the Linux kernel, the following vulnerability has been resolved: neighbour: use RCU protection in __neigh_notify() __neigh_notify() can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF.

CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 2/27/2025Modified: 10/15/2026

Related Intelligence (1)

CRITICALVulnerability

Siemens SIMATIC S7-1500 TM MFP

<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-295-16.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 SIMATIC S7-1500 TM MFP V1.1.1. Siemens is preparing fixes and recommends specific mitigations for products where fixes are not or not yet avail

CVE-2023-52927CVE-2023-53292
CISA Advisories

References (12)

https://git.kernel.org/stable/c/1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379Patchhttps://git.kernel.org/stable/c/40d8f2f2a373b6c294ffac394d2bb814b572ead1Patchhttps://git.kernel.org/stable/c/559307d25235e24b5424778c7332451b6c741159Patchhttps://git.kernel.org/stable/c/784eb2376270e086f7db136d154b8404edacf97bPatchhttps://git.kernel.org/stable/c/8666e9aab801328c1408a19fbf4070609dc0695aPatchhttps://git.kernel.org/stable/c/becbd5850c03ed33b232083dd66c6e38c0c0e569Patchhttps://git.kernel.org/stable/c/cdd5c2a12ddad8a77ce1838ff9f29aa587de82dfPatchhttps://git.kernel.org/stable/c/e1aed6be381bcd7f46d4ca9d7ef0f5f3d6a1be32Patchhttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.htmlhttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-265688.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-784472.html