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CVE-2026-23391
Linux Kernel vulnerability analysis and mitigation

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.


SourceNVD

Related Linux Kernel vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-23395CRITICAL9.1
  • Linux KernelLinux Kernel
  • kernel-modules-extra
NoNoMar 25, 2026
CVE-2026-23392HIGH7.1
  • Linux KernelLinux Kernel
  • kernel-rt-64k-modules
NoNoMar 25, 2026
CVE-2026-23391MEDIUM6.5
  • Linux KernelLinux Kernel
  • linux
NoNoMar 25, 2026
CVE-2026-31788N/AN/A
  • Linux KernelLinux Kernel
  • kernel-debug-modules-partner
NoNoMar 25, 2026
CVE-2026-23394N/AN/A
  • Linux KernelLinux Kernel
  • kernel-64k
NoNoMar 25, 2026

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