CVE-2026-23391
HIGHnetfilter: xt_CT: drop pending enqueued packets on template removal
Title source: cnaDescription
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_CT: drop pending enqueued packets on template removal Templates refer to objects that can go away while packets are sitting in nfqueue refer to: - helper, this can be an issue on module removal. - timeout policy, nfnetlink_cttimeout might remove it. The use of templates with zone and event cache filter are safe, since this just copies values. Flush these enqueued packets in case the template rule gets removed.
References (8)
Core 8
Core References
Scores
CVSS v3
7.8
EPSS
0.0002
EPSS Percentile
5.3%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
Status
published
Products (27)
linux/Kernel
3.4.0 - 6.1.167linux
linux/Kernel
6.13.0 - 6.18.20linux
linux/Kernel
6.19.0 - 6.19.10linux
linux/Kernel
6.2.0 - 6.6.130linux
linux/Kernel
6.7.0 - 6.12.78linux
Linux/Linux
< 3.4
Linux/Linux
24de58f465165298aaa8f286b2592f0163706cfe - 19a230dec6bb8928e3f96387f9085cf2c79bcef9
Linux/Linux
24de58f465165298aaa8f286b2592f0163706cfe - 55445134d42b84cb0a272e42c98d233ca65eca83
Linux/Linux
24de58f465165298aaa8f286b2592f0163706cfe - 63b8097cea1923fe82cd598068d0796da8c015ec
Linux/Linux
24de58f465165298aaa8f286b2592f0163706cfe - 777d02efe3d630cca4c1b63962cec17c57711325
... and 17 more
Published
Mar 25, 2026
Tracked Since
Mar 25, 2026