NULL pointer dereference in Mitsubishi Electric products - CVE-2021-20596
Published: July 21, 2021
Vulnerability identifier: #VU55139
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/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-2021-20596
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
MELSEC-F FX3U-ENET
MELSEC-F FX3U-ENET-L
MELSEC-F FX3U-ENET-P502
MELSEC-F FX3U-ENET
MELSEC-F FX3U-ENET-L
MELSEC-F FX3U-ENET-P502
Software vendor:
Mitsubishi Electric
Mitsubishi Electric
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can send specially crafted packet to the application and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.