SMEP

Assess

Techniques

CPU protection feature that blocks execution of user-space pages in kernel mode.

Why it's here

Placed in Assess: 1 article(s) of evidence from 1 source(s), led by security coverage, with 1 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.

Evidence (1)

8Hacker News·10/16/2026security
OpenBSD Kernel Bug Exploited for Local Root Access
Researchers described a local privilege-escalation exploit in OpenBSD that chains a decades-old shared-memory counter bug with a separate kernel write flaw. By forcing integer overflow, racing a use-after-free condition, and abusing predictable kernel allocations, they achieved root code execution without an information leak. The issues were fixed in OpenBSD errata updates.