NULL Pointer Dereference in MELSEC-F Series FX3U-ENET firmware version 1.14 and prior, FX3U-ENET-L firmware version 1.14 and prior and FX3U-ENET-P502 firmware version 1.14 and prior allows a remote unauthenticated attacker to cause a DoS condition in communication by sending specially crafted packets. Control by MELSEC-F series PLC is not affected and system reset is required for recovery.
[
{
"product": "MELSEC-F Series FX3U-ENET; FX3U-ENET-L; FX3U-ENET-P502",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Firmware version 1.14 and prior"
}
]
}
]