Deserialization of Untrusted Data in In-Sight OPC Server - CVE-2021-32935
Published: August 13, 2021
Vulnerability identifier: #VU55824
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-2021-32935
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can access to system level permissions and gain elevated privileges on the target system.
Affected software
In-Sight OPC Server
How to mitigate CVE-2021-32935
Install updates from vendor's website.
In-Sight OPC Server - update to 5.9.2