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CVE-2023-3373 is a vulnerability in the FTP server function of Mitsubishi Electric GOT2000 Series GT21 and GOT SIMPLE Series GS21 devices. In versions 01.49.000 and earlier, the port number used for FTP data connections is predictable from previous values. Because the passive/listening data port can be guessed, a remote unauthenticated attacker may connect to that port before or instead of the legitimate client. This can enable hijacking of the FTP data connection or interference with establishment of the connection. The issue is classified as CWE-342 (Predictable Exact Value from Previous Values). Affected products are GOT2000 Series GT21 version 01.49.000 and prior and GOT SIMPLE Series GS21 version 01.49.000 and prior.
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Cross-references every affected SKU, including bundled OEM variants.
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