CVE-2025-21763
Linux Kernel Neighbour Use-After-Free (UAF) Vulnerability
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.
INFO
Published Date :
Feb. 27, 2025, 3:15 a.m.
Last Modified :
March 21, 2025, 3:45 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-21763.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-21763 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-21763 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 21, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.13.4 *cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.79 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.16 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.179 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.25 up to (excluding) 5.4.291 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.235 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.129 Added Reference Type kernel.org: https://git.kernel.org/stable/c/1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/40d8f2f2a373b6c294ffac394d2bb814b572ead1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/559307d25235e24b5424778c7332451b6c741159 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/784eb2376270e086f7db136d154b8404edacf97b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8666e9aab801328c1408a19fbf4070609dc0695a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/becbd5850c03ed33b232083dd66c6e38c0c0e569 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/cdd5c2a12ddad8a77ce1838ff9f29aa587de82df Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e1aed6be381bcd7f46d4ca9d7ef0f5f3d6a1be32 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 13, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/40d8f2f2a373b6c294ffac394d2bb814b572ead1 Added Reference https://git.kernel.org/stable/c/8666e9aab801328c1408a19fbf4070609dc0695a Added Reference https://git.kernel.org/stable/c/e1aed6be381bcd7f46d4ca9d7ef0f5f3d6a1be32 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 27, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-416 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 27, 2025
Action Type Old Value New Value 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. Added Reference https://git.kernel.org/stable/c/1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379 Added Reference https://git.kernel.org/stable/c/559307d25235e24b5424778c7332451b6c741159 Added Reference https://git.kernel.org/stable/c/784eb2376270e086f7db136d154b8404edacf97b Added Reference https://git.kernel.org/stable/c/becbd5850c03ed33b232083dd66c6e38c0c0e569 Added Reference https://git.kernel.org/stable/c/cdd5c2a12ddad8a77ce1838ff9f29aa587de82df
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-21763 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-21763
weaknesses.