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Vulnerability · Published Jun 23, 2026 · Assigned by YokogawaGroup

CVE-2026-11833

High 8.2

In plain English

A high-severity security flaw in CI Server from Yokogawa Electric Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 4.0)8.2High
Exploit odds (30 days)0.3%top 80.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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

Affected products (as reported)

VendorProductVersions
Yokogawa Electric Corporation FAST/TOOLS R9.01 – through R10.04
Yokogawa Electric Corporation CI Server R1.01 – through R1.04

Weakness: CWE-319 · Vector: 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

References