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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379 cve-icon cve-icon
https://git.kernel.org/stable/c/559307d25235e24b5424778c7332451b6c741159 cve-icon cve-icon
https://git.kernel.org/stable/c/784eb2376270e086f7db136d154b8404edacf97b cve-icon cve-icon
https://git.kernel.org/stable/c/becbd5850c03ed33b232083dd66c6e38c0c0e569 cve-icon cve-icon
https://git.kernel.org/stable/c/cdd5c2a12ddad8a77ce1838ff9f29aa587de82df cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025022604-CVE-2025-21763-dcff@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-21763 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-21763 cve-icon
History

Tue, 04 Mar 2025 03:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Sat, 01 Mar 2025 03:00:00 +0000

Type Values Removed Values Added
Metrics threat_severity

Important

 threat_severity

Moderate

Fri, 28 Feb 2025 02:00:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Important

Thu, 27 Feb 2025 18:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Thu, 27 Feb 2025 02:45:00 +0000

Type Values Removed Values Added
Description 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.
Title neighbour: use RCU protection in __neigh_notify()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-02-27T02:18:15.078Z

Updated: 2025-02-27T18:02:26.961Z

Reserved: 2024-12-29T08:45:45.761Z

Link: CVE-2025-21763

cve-icon Vulnrichment

Updated: 2025-02-27T17:57:26.344Z

cve-icon NVD

Status : Received

Published: 2025-02-27T03:15:16.960

Modified: 2025-02-27T18:15:29.673

Link: CVE-2025-21763

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-02-27T00:00:00Z

Links: CVE-2025-21763 - Bugzilla