CVE-2011-4871 EXPLOIT
5.0
MEDIUM · CVSS 2.0 · EPSS 3.1% (pctl 87)
Patch early
A public exploit exists.
Description
Open Automation Software OPC Systems.NET before 5.0 allows remote attackers to cause a denial of service via a malformed .NET RPC packet on TCP port 58723.
Scoring
| CVSS | 5.0 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| EPSS | 3.12% — more likely to be exploited than 87% of all CVEs |
| Weakness | CWE-20 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2012-04-18 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| opcsystems | opcsystems.net |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | OPC Systems.NET 4.00.0048 - Denial of Service | 2011-10-10 |
References
→ the Explorer · watch your stack · NVD