#VU68287 Input validation error in Siemens products - CVE-2022-31766

Vulnerability identifier: #VU68287

Vulnerability risk: High

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:Amber

CVE-ID: CVE-2022-31766

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
SCALANCE WAM763-1
SCALANCE WAM766-1
SCALANCE WAM766-1 6GHz
SCALANCE WAM766-1 EEC
SCALANCE WAM766-1 EEC 6GHz
SCALANCE WUM763-1
SCALANCE WUM766-1
SCALANCE WUM766-1 6GHz
RUGGEDCOM RM1224 LTE
SCALANCE M804PB
SCALANCE M812-1 ADSL-Router (Annex A)
SCALANCE M812-1 ADSL-Router (Annex B)
SCALANCE M816-1 ADSL-Router (Annex A)
SCALANCE M816-1 ADSL-Router (Annex B)
SCALANCE M826-2 SHDSL-Router
SCALANCE M874-2
SCALANCE M874-3
SCALANCE M876-3
SCALANCE M876-4
SCALANCE MUM853-1
SCALANCE MUM856-1
SCALANCE S615

Software vendor:
Siemens

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when TCP Event service is enabled. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://cert-portal.siemens.com/productcert/pdf/ssa-697140.pdf