Heap-based buffer overflow in WebAccess HMI Designer - CVE-2021-33000
Published: June 23, 2021
Vulnerability identifier: #VU54321
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-33000
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error. A remote attacker can use a specially crafted project file, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
WebAccess HMI Designer
How to mitigate CVE-2021-33000
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.