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Fencer Intel
critical 10.0

CVE-2012-2559 json

WellinTech KingHistorian 3.0 allows remote attackers to execute arbitrary code or cause a denial of service (invalid pointer write) via a c…

published 2012-07-05 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-2545

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.5%
EPSS 4.5% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

WellinTech KingHistorian 3.0 allows remote attackers to execute arbitrary code or cause a denial of service (invalid pointer write) via a crafted packet to TCP port 5678.

Vendor advisories

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

cisa ICSA-12-185-01 updated cvss 10.0

WellinTech KingView Multiple Vulnerabilities

  • WellinTech KingHistorian 3.0. WellinTech KingView 6.53
    affected: mitigation “WellinTech has developed patches to resolve these issues. The WellinTech advisory and the KingView product patch can be found here: (http://www.wellintech.com/index.php/news/33-patch-for-kingview653).”

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

4.54% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors

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.