CVE-2020-27267

moderate-risk
Published 2021-01-14

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, and 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.

Do I need to act?

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0.13% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.1/10 Critical
NETWORK / LOW complexity

Affected Products (11)

Industrial Gateway Server
Industrial Gateway Server
Kepware Kepserverex
Kepware Kepserverex
Opc-Aggregator
Thingworx Industrial Connectivity
Thingworx Kepware Server
Thingworx Kepware Server
Kepserver Enterprise
Kepserver Enterprise
Top Server

Affected Vendors

Ptc Ge Rockwellautomation Softwaretoolbox

References (2)

Third Party Advisory https://us-cert.cisa.gov/ics/advisories/icsa-20-352-02
Third Party Advisory https://us-cert.cisa.gov/ics/advisories/icsa-20-352-02
48
/ 100
moderate-risk
Severity 31/34 · Critical
Exploitability 1/34 · Minimal
Exposure 16/34 · Moderate