CVE-2021-31346 - CVE House
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Status published High CVE-2021-31346

A vulnerability has been identified in Capital Embedded AR Classic...

Vulnerability 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). The total length of an ICMP payload (set in the IP header) is unchecked. This may lead to various side effects, including Information Leak and Denial-of-Service conditions, depending on the network buffer organization in memory. (FSMD-2021-0007)

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

Capital Embedded AR Classic 431-422, Capital Embedded AR Classic R20-11, PLUSCONTROL 1st Gen, SIMOTICS CONNECT 400
Vulnerable Versions:
0, All versions, All versions < V0.5.0.0, All versions < V1.0.0.0

Timeline

Official Publish: November 9th, 2021
Last Modified: March 11th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Weaknesses (CWE)

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.