Buffer overflow in Allen-Bradley MicroLogix 1400 - CVE-2021-22659
Published: February 3, 2021
Vulnerability identifier: #VU50270
CSH Severity: Medium
CVSS v4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-22659
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to a boundary error. A remote attacker can send a specially crafted Modbus packet, trigger memory corruption, retrieve or modify random values in the register and cause a denial of service condition on the target system.
Affected software
Allen-Bradley MicroLogix 1400
How to mitigate CVE-2021-22659
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.