high7.5
CVE-2021-20612
Lack of administrator control over security vulnerability in MELSEC-F series FX3U-ENET Firmware version 1.14 and prior, FX3U-ENET-L Firmware version 1.14 and p…
Impact
Lack of administrator control over security vulnerability 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 denial-of-service (DoS) condition in communication function of the product or other unspecified effects by sending specially crafted packets to an unnecessary opening of TCP port. Control by MELSEC-F series PLC is not affected by this vulnerability, but system reset is required for recovery.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mitsubishielectric | Fx3u-Enet Firmware | through 1.14 |
| Mitsubishielectric | Fx3u-Enet-L Firmware | through 1.14 |
| Mitsubishielectric | Fx3u-Enet-P502 Firmware | through 1.14 |
References
- NVD record
- CVE.org record
- https://jvn.jp/vu/JVNVU93268332/index.html
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf
- https://jvn.jp/vu/JVNVU93268332/index.html
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf