CVE-2026-23391
netfilter: xt_CT: drop pending enqueued packets on template removal
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Mar 25, 2026 |
| Last Updated | Apr 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
24de58f465165298aaa8f286b2592f0163706cfe < d2d0bae0c9a2a17b6990a2966f5cdce0813d6256 24de58f465165298aaa8f286b2592f0163706cfe < 63b8097cea1923fe82cd598068d0796da8c015ec 24de58f465165298aaa8f286b2592f0163706cfe < 19a230dec6bb8928e3f96387f9085cf2c79bcef9 24de58f465165298aaa8f286b2592f0163706cfe < cb549925875fa06dd155e49db4ac2c5044c30f9c 24de58f465165298aaa8f286b2592f0163706cfe < 777d02efe3d630cca4c1b63962cec17c57711325 24de58f465165298aaa8f286b2592f0163706cfe < f62a218a946b19bb59abdd5361da85fa4606b96b
Linux / Linux
3.4
References
git.kernel.org: https://git.kernel.org/stable/c/d2d0bae0c9a2a17b6990a2966f5cdce0813d6256 git.kernel.org: https://git.kernel.org/stable/c/63b8097cea1923fe82cd598068d0796da8c015ec git.kernel.org: https://git.kernel.org/stable/c/19a230dec6bb8928e3f96387f9085cf2c79bcef9 git.kernel.org: https://git.kernel.org/stable/c/cb549925875fa06dd155e49db4ac2c5044c30f9c git.kernel.org: https://git.kernel.org/stable/c/777d02efe3d630cca4c1b63962cec17c57711325 git.kernel.org: https://git.kernel.org/stable/c/f62a218a946b19bb59abdd5361da85fa4606b96b