#VU21490 Uncaught Exception in Schneider Electric products - CVE-2018-7856
Published: October 2, 2019
Vulnerability identifier: #VU21490
Vulnerability risk: 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:P/U:Green
CVE-ID: CVE-2018-7856
CWE-ID: CWE-248
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Modicon Quantum
Modicon Premium
Modicon M340
Modicon M580
Modicon Quantum
Modicon Premium
Modicon M340
Modicon M580
Software vendor:
Schneider Electric
Schneider Electric
Description
The vulnerability allows a remote attacker to cause a denial of service (DoS) condition on the target system.
The vulnerability exists due to uncaught exception vulnerability when writing invalid memory blocks to the controller over Modbus. A remote attacker can cause a denial of service condition.
The vulnerability exists due to uncaught exception vulnerability when writing invalid memory blocks to the controller over Modbus. A remote attacker can cause a denial of service condition.
Remediation
Install updates from vendor's website.