CVE-2025-21760

HighCVSS 8.1/10Last modified Oct 15, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

ndisc: extend RCU protection in ndisc_send_skb()

ndisc_send_skb() can be called without RTNL or RCU held.

Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu() and avoid a potential UAF.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
Feb 27, 2025
Last modified
Oct 15, 2026
NVD status
Modified

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CVE-2025-21760: High severity, CVSS 8.1 | Vulnix