VulnerabilityModified
CVE-2025-21760
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.
HIGH 8.1EPSS 36.8%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 36.8%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 36.85% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/04e05112f10354ffc3bb6cc796d553bab161594cPatch
- https://git.kernel.org/stable/c/10a1f3fece2f0d23a3a618b72b2b4e6f408ef7d1Patch
- https://git.kernel.org/stable/c/4d576202b90b1b95a7c428a80b536f91b8201bccPatch
- https://git.kernel.org/stable/c/789230e5a8c1097301afc802e242c79bc8835c67Patch
- https://git.kernel.org/stable/c/a9319d800b5701e7f5e3fa71a5b7c4831fc20d6dPatch
- https://git.kernel.org/stable/c/ae38982f521621c216fc2f5182cd091f4734641dPatch
- https://git.kernel.org/stable/c/e24d225e4cb8cf108bde00b76594499b98f0a74dPatch
- https://git.kernel.org/stable/c/ed6ae1f325d3c43966ec1b62ac1459e2b8e45640Patch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.