7.8
High
CVE-2026-23391 In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_CT: drop pending enqueued packets on…
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 7.0 | earliest → < 7.0 | 7.0 |
| Linux 6.19 | earliest → < 6.19.10 | 6.19.10 |
| Linux 6.18 | earliest → < 6.18.20 | 6.18.20 |
| Linux 6.12 | earliest → < 6.12.78 | 6.12.78 |
| Linux 6.6 | earliest → < 6.6.130 | 6.6.130 |
| Linux 6.1 | earliest → < 6.1.167 | 6.1.167 |
| Linux 5.15 | earliest → < 5.15.203 | 5.15.203 |
| Linux 5.10 | earliest → < 5.10.253 | 5.10.253 |
| Linux | 3.4 | No fix stated |
Show the 4 other branches Hide the 4 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions not published |
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