Critical severity9.1NVD Advisory· Published Jan 14, 2021· Updated Jun 17, 2026
CVE-2020-27263
CVE-2020-27263
Description
KEPServerEX: v6.0 to v6.9, ThingWorx Kepware Server: v6.8 and v6.9, ThingWorx Industrial Connectivity: All versions, OPC-Aggregator: All versions, Rockwell Automation KEPServer Enterprise, GE Digital Industrial Gateway Server: v7.68.804 and v7.66, Software Toolbox TOP Server: All 6.x versions, are vulnerable to a heap-based buffer overflow. Opening a specifically crafted OPC UA message could allow an attacker to crash the server and potentially leak data.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
14cpe:2.3:a:ge:industrial_gateway_server:7.66:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:ge:industrial_gateway_server:7.66:*:*:*:*:*:*:*
- cpe:2.3:a:ge:industrial_gateway_server:7.68.804:*:*:*:*:*:*:*
cpe:2.3:a:ptc:kepware_kepserverex:6.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:ptc:kepware_kepserverex:6.0:*:*:*:*:*:*:*
- cpe:2.3:a:ptc:kepware_kepserverex:6.9:*:*:*:*:*:*:*
- cpe:2.3:a:ptc:opc-aggregator:-:*:*:*:*:*:*:*
- cpe:2.3:a:ptc:thingworx_industrial_connectivity:-:*:*:*:*:*:*:*
cpe:2.3:a:ptc:thingworx_kepware_server:6.8:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:ptc:thingworx_kepware_server:6.8:*:*:*:*:*:*:*
- cpe:2.3:a:ptc:thingworx_kepware_server:6.9:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:kepserver_enterprise:6.6.504.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:rockwellautomation:kepserver_enterprise:6.6.504.0:*:*:*:*:*:*:*
- cpe:2.3:a:rockwellautomation:kepserver_enterprise:6.9.572.0:*:*:*:*:*:*:*
- Range: All versions
- Range: v6.8 and v6.9
- Range: v6.0 to v6.9
Patches
Vulnerability mechanics
References
1- us-cert.cisa.gov/ics/advisories/icsa-20-352-02nvdThird Party AdvisoryUS Government Resource
News mentions
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