CVE-2025-40074

CVE-2025-40074

Critical · published October 28, 2025

CVSS v3.1
9.8
EPSS
0%
Percentile
39.0
In the wild
Unconfirmed
What it is

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

ipv4: start using dst_dev_rcu()

Change icmpv4_xrlim_allow(), ip_defrag() to prevent possible UAF.

Change ipmr_prepare_xmit(), ipmr_queue_fwd_xmit(), ip_mr_output(),

ipv4_neigh_lookup() to use lockdep enabled dst_dev_rcu().

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00461 · 39.0th percentile
Published
2025-10-28T16:15Z
References (5)
https://git.kernel.org/stable/c/684efb2c86c887685f9aa65e1a21b3df6c1f822d · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/864155c164654110f68a17a63bd0339754790d67 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/923e0734c386984d45de508528a7a7ad91d791cc · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e150f273cd8ed34ebc6d03758aad95c12fc58337 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 28 OCT 11:48Z
    ipv4: start using dst_dev_rcu()
    cvelistv5