CVE-2026-46331 Post-Exploit Page Cache Drop to Mask Binary Poisoning

Ibrahim Saud@tektrix

•updated Jun 26, 2026•0•0•4

This rule detects a suspicious sequence of events where a 'tc' (traffic control) command using 'pedit' is followed by a 'drop_caches' operation within a 5-minute window. This pattern is potentially associated with an evidence-wiping technique used to clear system caches after potentially malicious network manipulation or data staging activities, possibly linked to CVE-2026-46331.