CVE-2023-5909
Improper Validation of Certificate with Host Mismatch in PTC KEPServerEx
- State
- Published
- Severity
- 7.5 High
- Published
- Nov 30, 2023
- Updated
- Feb 25, 2026
- Reserved
- Nov 1, 2023
Description
KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | icscert |
Weaknesses
- CWE-297 Improper Validation of Certificate with Host Mismatch
Affected Products
| Product | Versions |
|---|---|
KEPServerEXPTC |
|
ThingWorx Kepware ServerPTC |
|
ThingWorx Industrial ConnectivityPTC |
|
OPC-AggregatorPTC |
|
ThingWorx Kepware EdgePTC |
|
KEPServer EnterpriseRockwell Automation |
|
Industrial Gateway ServerGE Gigital |
|
TOP ServerSoftware Toolbox |
|
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-334-03government-resource
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