The ability for an attacker to execute arbitrary code on a target system — usually the highest-severity outcome in any pen test.
RCE is the headline. It can come from many roots: SQL injection escalated to OS command, XXE chained with library bugs, deserialization in Java/Python/PHP, template injection, or unpatched CVEs like Log4Shell.
Defence: defence in depth — least privilege, AppArmor/SELinux, EDR, network egress controls, and signed code only.
See our web application penetration testing, API security testing, network penetration testing, and cloud security audit services for how we test for and defend against this class of issue.
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