CVE-2026-11833

HIGH

Yokogawa Electric Corporation Fast/tools - Cleartext Transmission of Sensitive Information

Title source: rule

Description

Overview: A vulnerability has been found in FAST/TOOLS and CI Server. The web server may return a response containing the CI Server setting information. This information could be exploited by an attacker for other attacks. The affected products and versions are as follows: FAST/TOOLS (Packages: RVSVRN, UNSVRN, HMIWEB, FTEES, HMIMOB) R9.01 to R10.04 CI Server (All packages) R1.01 to R1.04

References (1)

Core 1

Core References

https://web-material3.yokogawa.com/1/39777/files/YSAR-26-0004-E.pdf

Scores

CVSS v4 8.2

EPSS 0.0022

EPSS Percentile 12.3%

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-319

Status published

Products (2)

Yokogawa Electric Corporation/CI Server R1.01 - R1.04

Yokogawa Electric Corporation/FAST/TOOLS R9.01 - R10.04

Published Jun 23, 2026

Tracked Since Jun 23, 2026