Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | MELSEC-F Series FX3U-ENET; FX3U-ENET-L; FX3U-ENET-P502 | Firmware version 1.14 and prior | — |
Advisories 1
- ICSA-21-201-01 Mitsubishi Electric MELSEC-F Series CISA ICS & IT advisories · Jul 20, 2021