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Fencer Vulns
medium 5.3

CVE-2024-4106 json

A vulnerability has been found in FAST/TOOLS and CI Server.

published 2024-06-26 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-32668

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits
0
none known

Summary

A vulnerability has been found in FAST/TOOLS and CI Server. The affected products have built-in accounts with no passwords set. Therefore, if the product is operated without a password set by default, an attacker can break into the affected product. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04 CI Server R1.01.00 to R1.03.00

Vendor advisories

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

cisa ICSA-24-179-03 updated cvss 5.3

Yokogawa FAST/TOOLS and CI Server

  • Yokogawa CI Server >=R1.01.00, <=R1.03.00
    affected: vendor fix, mitigation “For both platforms, if the password for the default account has not been changed, please change that password according to the documentation included with the patch software.” contact.yokogawa.com
  • Yokogawa FAST/TOOLS FTEES Package >=R9.01, <=R10.04 Yokogawa FAST/TOOLS HMIMOB Package >=R9.01, <=R10.04 Yokogawa FAST/TOOLS HMIWEB Package >=R9.01, <=R10.04 Yokogawa FAST/TOOLS RVSVRN Package >=R9.01, <=R10.04 Yokogawa FAST/TOOLS UNSVRN Package >=R9.01, <=R10.04
    affected: mitigation “Yokogawa recommends customers using FAST/TOOLS to update to R10.04 and first apply patch software R10.04 SP3 and afterwards apply patch software I12560.” contact.yokogawa.com

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

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

  • Yokogawa Electric Corporation FAST/TOOLS
  • Yokogawa Electric Corporation CI Server
  • yokogawa_electric_corporation fast_tools
  • yokogawa_electric_corporation ci_server

Classification

Weakness
  • CWE-258 Empty Password in Configuration File

References

Sources

Fencer Vulns 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.