Yokogawa FAST/TOOLS and CI Server

ADVISORY SUMMARY Successful exploitation of this vulnerability may return a response containing the CI Server setting information. 2. RECOMMENDED PRACTICES CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Minimize network exposure for all...

The vulnerability of the SCADA system’s web server, Yokogawa FAST/TOOLS, allows a intruder to execute arbitrary code.

The vulnerability of the Yokogawa FAST/TOOLS SCADA system’s web server is related to improper security checks for standard elements. Exploiting this vulnerability allows a malicious actor to execute arbitrary code using the OPTIONS method from a remote location...

The vulnerability of the Yokogawa FAST/TOOLS SCADA system, related to the transmission of critical information in plaintext, allows a intruder to disclose protected information and execute arbitrary codes.

The vulnerability of the Yokogawa FAST/TOOLS SCADA system lies in the transmission of critical information in plaintext. Exploiting this vulnerability allows a malicious actor to disclose the protected information and execute arbitrary codes...

The vulnerability of the Yokogawa FAST/TOOLS SCADA system, related to improper security checks for standard elements, allows a intruder to execute arbitrary codes.

The vulnerability of the Yokogawa FAST/TOOLS SCADA system is related to improper security checks for standard components. Exploiting this vulnerability allows a malicious actor operating remotely to execute arbitrary code...

The vulnerability of the Yokogawa FAST/TOOLS SCADA system, related to the violation of personal privacy, allows a intruder to disclose protected information.

The vulnerability of the Yokogawa FAST/TOOLS SCADA system is related to the violation of personal privacy. Exploiting this vulnerability can allow a remote attacker to disclose the protected information...

CVE-2025-66606

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product does not properly encode URLs. An attacker could tamper with web pages or execute malicious scripts. The affected products and versions are as follows: FAST/TOOLS Packages: RVSVRN, UNSVRN, HMIWEB,...

CVE-2025-66604

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. The library version could be displayed on the web page. This information could be exploited by an attacker for other attacks. The affected products and versions are as follows: FAST/TOOLS Packages: RVSVRN,...

CVE-2025-66599

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. Physical paths could be displayed on web pages. This information could be exploited by an attacker for other attacks. The affected products and versions are as follows: FAST/TOOLS Packages: RVSVRN, UNSVRN,...

CVE-2025-66601

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product does not specify MIME types. When an attacker performs a content sniffing attack, malicious scripts could be executed. The affected products and versions are as follows: FAST/TOOLS Packages: RVSVR...

CVE-2025-66598

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product supports old SSL/TLS versions, potentially allowing an attacker to decrypt communications with the web server. The affected products and versions are as follows: FAST/TOOLS Packages: RVSVRN, UNSVR...

CVE-2025-66597

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product supports weak cryptographic algorithms, potentially allowing an attacker to decrypt communications with the web server. The affected products and versions are as follows: FAST/TOOLS Packages:...

CVE-2025-66608

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product does not properly validate URLs. An attacker could send specially crafted requests to steal files from the web server. The affected products and versions are as follows: FAST/TOOLS Packages: RVSVR...

Yokogawa FAST/TOOLS

RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to redirected users to malicious sites, decrypt communications, perform a man-in-the-middle MITM attack, execute malicious scripts, steal files, and perform other various attacks. 2. RECOMMENDED PRACTICES...

CVE-2025-66597

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product supports weak cryptographic algorithms, potentially allowing an attacker to decrypt communications with the web server. The affected products and versions are as follows: FAST/TOOLS Packages:...

CVE-2025-66598

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product supports old SSL/TLS versions, potentially allowing an attacker to decrypt communications with the web server. The affected products and versions are as follows: FAST/TOOLS Packages: RVSVRN, UNSVR...

CVE-2025-66597

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product supports weak cryptographic algorithms, potentially allowing an attacker to decrypt communications with the web server. The affected products and versions are as follows: FAST/TOOLS Packages:...

CVE-2025-66598

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product supports old SSL/TLS versions, potentially allowing an attacker to decrypt communications with the web server. The affected products and versions are as follows: FAST/TOOLS Packages: RVSVRN, UNSVR...

CVE-2025-66596

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product does not properly validate request headers. When an attacker inserts an invalid host header, users could be redirected to malicious sites. The affected products and versions are as follows:...

CVE-2025-66607

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. The response header contains an insecure setting. Users could be redirected to malicious sites by an attacker. The affected products and versions are as follows: FAST/TOOLS Packages: RVSVRN, UNSVRN, HMIWEB,...

CVE-2025-66606

A vulnerability has been found in FAST/TOOLS provided by Yokogawa Electric Corporation. This product does not properly encode URLs. An attacker could tamper with web pages or execute malicious scripts. The affected products and versions are as follows: FAST/TOOLS Packages: RVSVRN, UNSVRN, HMIWEB,...