Template Process Flaw in Linux Kernel's Netfilter Leading to Potential Exploitation

CVE-2026-53267

What is CVE-2026-53267?

A vulnerability exists in the Linux kernel's Netfilter module that allows for a type of buffer overflow during the evaluation of connection tracking templates. An improperly configured rule can trigger unsafe memory operations, which may lead to corruption of kernel memory or unintended behavior. This flaw highlights the need for proper validation during rule evaluation to mitigate potential attacks. Developers are advised to ensure their kernel versions are updated to incorporate the latest security fixes that address this issue.

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