CVE-2026-45257 BUMSRAKETE Pre-Exploit FreeBSD Kernel Version and kTLS Sysctl Discovery

Ibrahim Saud@tektrix

•updated Jun 30, 2026•0•0•2

Detects reconnaissance activity where an attacker executes system discovery commands to identify the FreeBSD kernel version and kTLS configuration (specifically 'kern.ipc.mb_use_ext_pgs'). This enumeration is performed to fingerprint potential targets for the BUMSRAKETE exploit (CVE-2026-45257).