VulnerabilityDeferred

CVE-2025-40074

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.

CRITICAL 9.8EPSS 0.41%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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().

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.41% probability · 35th percentile
CISA KEV: Not listed
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

References

https://git.kernel.org/stable/c/684efb2c86c887685f9aa65e1a21b3df6c1f822d
https://git.kernel.org/stable/c/6ad8de3cefdb6ffa6708b21c567df0dbf82c43a8
https://git.kernel.org/stable/c/923e0734c386984d45de508528a7a7ad91d791cc

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.