Integer underflow in Mitsubishi Electric products - CVE-2021-20607
Published: January 5, 2022
Vulnerability identifier: #VU59227
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-20607
CWE-ID: CWE-191
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to integer underflow. A remote attacker can trick a victim to open a specially crafted file, trigger integer underflow and cause a denial of service condition on the target system.
Affected software
GX Works2
MELSOFT Navigator
EZSockdet
MELSOFT Navigator
EZSockdet
How to mitigate CVE-2021-20607
Install updates from vendor's website.
GX Works2 - update to 1.610L