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Fencer Intel
medium 4.3

CVE-2012-4689 json

Integer overflow in CimWebServer.exe in GE Intelligent Platforms Proficy HMI/SCADA - CIMPLICITY 4.01 through 8.0, and Proficy Process Syste…

published 2013-01-17 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-4614

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-12-341-01 updated cvss 7.1

GE Proficy HMI/SCADA Cimplicity Integer Overflow

  • GE Proficy HMI/SCADA – CIMPLICITY >=4.01 GE Proficy Process Systems with CIMPLICITY
    affected: mitigation “As with any third-party product, ensure that your IIS Web server is up to date with the latest security patches and follow any secure configuration recommendations from the vendor.”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

1.15% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.