#VU48953 Improper Check or Handling of Exceptional Conditions in MELSEC iQ-F series FX5U(C) CPU module - CVE-2020-5665
Published: December 14, 2020 / Updated: December 14, 2020
Vulnerability identifier: #VU48953
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-5665
CWE-ID: CWE-703
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
MELSEC iQ-F series FX5U(C) CPU module
MELSEC iQ-F series FX5U(C) CPU module
Software vendor:
Mitsubishi Electric
Mitsubishi Electric
Description
The vulnerability allows a local attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an improper check or handling of exceptional conditions issue. A local attacker can send a specially crafted ARP packet and cause a denial of service condition on the target system.
Remediation
Install updates from vendor's website.