Integer overflow in CimWebServer.exe in GE Intelligent Platforms Proficy HMI/SCADA - CIMPLICITY 4.01 through 8.0, and Proficy Process Systems with CIMPLICITY, allows remote attackers to cause a denial of service (daemon crash) via a malformed HTTP request.
Conclusion & alert: CVE-2012-4689 is rated Low Risk (38.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.46%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-30 | 0.40% | 0.46% | +0.05% |
| 2 | 2025-03-29 | 0.46% | 0.40% | -0.05% |
| 3 | 2025-03-17 | — | 0.46% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| ge | intelligent_platforms_proficy_hmi\/scada_cimplicity | 4.01 | cpe:2.3:a:ge:intelligent_platforms_proficy_hmi\/scada_cimplicity:4.01:*:*:*:*:*:*:* |
| ge | intelligent_platforms_proficy_hmi\/scada_cimplicity | 7.5 | cpe:2.3:a:ge:intelligent_platforms_proficy_hmi\/scada_cimplicity:7.5:*:*:*:*:*:*:* |
| ge | intelligent_platforms_proficy_hmi\/scada_cimplicity | 8.0 | cpe:2.3:a:ge:intelligent_platforms_proficy_hmi\/scada_cimplicity:8.0:*:*:*:*:*:*:* |
| ge | intelligent_platforms_proficy_process_systems_with_cimplicity | — | cpe:2.3:a:ge:intelligent_platforms_proficy_process_systems_with_cimplicity:-:*:*:*:*:*:*:* |
| ge | intelligent_platforms_proficy_process_systems | — | cpe:2.3:h:ge:intelligent_platforms_proficy_process_systems:-:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://support.ge-ip.com/support/index?page=kbchannel&id=S:KB15153 | |
| http://www.us-cert.gov/control_systems/pdf/ICSA-12-341-01.pdf | US Government Resource |