Critical severity · published Jan 14, 2021
CVE-2020-27265
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…
9.8
CVSS
10.5%
EPSS
No
On KEV
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 stack-based buffer overflow. Opening a specifically crafted OPC UA message could allow an attacker to crash the server and remotely execute code.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)10.5% · higher than 96% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IG
Industrial Gateway Server · GE
7.66; 7.68.804 · source: NVD
KE
Kepserver Enterprise · Rockwellautomation
6.6.504.0; 6.9.572.0 · source: NVD
KK
Kepware Kepserverex · Ptc
6.0; 6.9 · source: NVD
OP
Opc-aggregator · Ptc
All versions, or not specified · source: NVD
TI
Thingworx Industrial Connectivity · Ptc
All versions, or not specified · source: NVD
TK
Thingworx Kepware Server · Ptc
6.8; 6.9 · source: NVD
TS
Top Server · Softwaretoolbox
6.0 through 6.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-27265
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-27265
Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-352-02
More from Industrial Gateway Server
9.8
CVE-2022-2825
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kepware KEPServerEX 6.11.718.0
9.1
CVE-2023-5908
KEPServerEX is vulnerable to a buffer overflow which may allow an attacker to crash the product being accessed or leak information
9.1
CVE-2022-2848
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kepware KEPServerEX 6.11.718.0
9.1
CVE-2020-27267
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…
9.1
CVE-2020-27263
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…