CVE-2021-31344: siemens capital embedded ar classic 431-422 Type Confusion

Vulnerability summary

CVE-2021-31344 is a medium (CVSS 6.9) Type Confusion vulnerability in siemens capital embedded ar classic 431-422. EPSS estimates a 1.46% chance of exploitation in the next 30 days, higher than 73% of scored vulnerabilities.

Timeline

1. 09-11-2021
   PublishedVulnerability first disclosed.
2. 11-03-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability has been identified in Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), PLUSCONTROL 1st Gen (All versions), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), SIMOTICS CONNECT 400 (All versions < V1.0.0.0). ICMP echo packets with fake IP options allow sending ICMP echo reply messages to arbitrary hosts on the network. (FSMD-2021-0004)

• CWE-843Access of Resource Using Incompatible Type ('Type Confusion')The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.