PatchTheCVECVE-2015-7917: Untrusted search path vulnerability in Open Automation OPC Systems.NET 8.00.0023 and earlier allows local user
CVE-2015-7917 is a high-severity flaw (CVSS 7.2) affecting opc systems.net. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Untrusted search path vulnerability in Open Automation OPC Systems.NET 8.00.0023 and earlier allows local users to gain privileges via a Trojan horse DLL in an unspecified directory.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.2 (High) |
| Attack vector | Local |
| Attack complexity | High |
| Privileges needed | High |
| User interaction | Required |
| EPSS exploit chance | 0.4% (top 67%) |
| CISA exploited list | No |
| Published | 2015-12-23 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2015-7917?
opc systems.net: upgrade to newer than 8.00.0023. Exact commands for each OS are on this page.
Is CVE-2015-7917 being exploited?
CVE-2015-7917 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2015-7917 affect?
CVE-2015-7917 affects opc systems.net. Severity is high (CVSS 7.2). Untrusted search path vulnerability in Open Automation OPC Systems.NET 8.00.0023 and earlier allows local users to gain privileges via a Trojan horse DLL in an unspecified directory.
How urgent is CVE-2015-7917?
Priority 34/100. High severity