CVE-2023-5909
HIGHCVSS 7.5/10EPSS 0.44%
Last modified
CVE-2023-5909 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect. . EPSS estimates a 0.44% chance of exploitation in the next 30 days.
Description
KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ge | Industrial Gateway Server | <= 7.614 |
| Ptc | Keepserverex | <= 6.14.263.0 |
| Ptc | Opc-Aggregator | <= 6.14 |
| Ptc | Thingworx Industrial Connectivity | All versions |
| Ptc | Thingworx Kepware Edge | <= 1.7 |
| Ptc | Thingworx Kepware Server | <= 6.14.263.0 |
| Rockwellautomation | Kepserver Enterprise | <= 6.14.263.0 |
| Softwaretoolbox | Top Server | <= 6.14.263.0 |
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-334-03Third Party Advisory, US Government Resource
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-334-03Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-5909?
KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect.
How severe is CVE-2023-5909?
CVE-2023-5909 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.
How do I fix CVE-2023-5909?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2023-5909?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST