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Fencer Intel
medium 5.0

CVE-2012-1809 json

The web server in the ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM, H4-ECOM-F, and H4-ECOM100…

published 2012-04-13 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-1819

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

The web server in the ECOM Ethernet module in Koyo H0-ECOM, H0-ECOM100, H2-ECOM, H2-ECOM-F, H2-ECOM100, H4-ECOM, H4-ECOM-F, and H4-ECOM100 allows remote attackers to cause a denial of service (resource consumption) via unspecified vectors.

Vendor advisories

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

cisa ICSA-12-102-02 updated cvss 5.0

Koyo Ecom Modules Vulnerabilities

  • Koyo H0-ECOM (For DirectLogic DL06 Series Programmable Logic Controllers) Koyo H0-ECOM100 (For DirectLogic DL06 Series Programmable Logic Controllers) Koyo H2-ECOM (For DirectLogic DL205 Series Programmable Logic Controllers) Koyo H2-ECOM-F (For DirectLogic DL205 Series Programmable Logic Controllers) Koyo H2-ECOM100 (For DirectLogic DL205 Series Programmable Logic Controllers) Koyo H4-ECOM (For DirectLogic DL405 Series Programmable Logic Controllers)
    +2 more products
    Koyo H4-ECOM-F (For DirectLogic DL405 Series Programmable Logic Controllers) Koyo H4-ECOM100 (For DirectLogic DL405 Series Programmable Logic Controllers)
    affected: mitigation “however, the web server is now disabled by default. A configuration change is required to enable the web server.”

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

1.34% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

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.