Stealthy Remote Code Execution on Linux Systems

Researchers have demonstrated a method for executing malicious code on hardened systems with the noexec restriction enabled.

The technique relies on loading an ELF file directly into memory and emulating its execution via a userland loader, making the activity invisible to standard auditing and policy enforcement mechanisms. After successful execution, an attacker gains code execution with the privileges of the current user, and when combined with local vulnerabilities, can escalate privileges to root.

📎 Article: https://hardenedlinux.org/blog/2026-04-13-stealthy-rce-on-hardened-linux-noexec--userland-execution-poc/

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