{"id":"CVE-2026-17545","state":"PUBLISHED","title":"PHP on Windows: Reserved Device Names Are Not Rejected Before File/Stream I/O which can cause DoS","description":"On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. 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