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Cyber Security

Researchers Demonstrate OpenBSD Root Exploit Chaining 37-Year-Old Shared-Memory Bug

Image: The Hacker News

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  • The Hacker News · October 16, 2026 17:48
    A local privilege escalation exploit published today gains root on OpenBSD 7.9 by chaining a roughly 37-year-old integer overflow with a separate kernel flaw, bypassing OpenBSD's KARL kernel-address randomization and its SMAP and SMEP hardware protections. Security firm Calif, which found and…