CVE-2020-27263

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CVSS 3.1

9.1 critical

EPSS

5%p92

Published

Jan 14, 2021 (Jan 14, 2021)

Modified

Jun 17, 2026

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.

Vendors: ge ptc rockwellautomation softwaretoolbox
Products: industrial gateway server, kepware kepserverex, opc-aggregator, thingworx industrial connectivity, thingworx kepware server, kepserver enterprise, top server
Weakness: CWE-122, CWE-787
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (4.9%)

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