AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2021-40871

HIGH · CVSS 7.5 EPSS 1.27%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-11-10 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2021-40871
Severity
HIGH
CVSS
7.5
EPSS
1.27%

Original NVD Description

An issue was discovered in Softing Industrial Automation OPC UA C++ SDK before 5.66. Remote attackers to cause a denial of service (DoS) by sending crafted messages to a OPC/UA client. The client process may crash unexpectedly because of a wrong type cast, and must be restarted.