Vulnerabilities > CVE-2021-20612 - Unspecified vulnerability in Mitsubishielectric products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 3 | |
| Hardware | 3 |
References
- https://jvn.jp/vu/JVNVU93268332/index.html
- https://jvn.jp/vu/JVNVU93268332/index.html
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-013-01
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-023_en.pdf