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EP. 190: CVE-2026-109618: Critical PHP Memory Corruption Enables Remote Code Execution
Summary
CVE-2026-109618 is a critical PHP memory corruption vulnerability that can allow unauthenticated remote code execution through unsafe out-of-memory handling. PHP can be interrupted while request data is only partially initialized, after which cleanup logic may process invalid memory state as legitimate.
The threat has now moved beyond research. Successful exploitation of the PHP2Shell vulnerabilities has been reported in the wild, while industrial vendors are assessing and patching products that embed vulnerable PHP components.
Key Takeaways
• CVE-2026-109618 carries a CVSS score of…
The skinny
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