Controller Code Upload Detected (Critical)

An upload of the controller code has been detected over the network. When not part of regular operations, a code upload can be used to gather information about the controller behavior as part of reconnaissance activity. This plugin only works with Tenable.ot. Please visit...

Abnormal Asset Behavior Detected (High)

This asset behavior is an anomaly that needs to be verified for the root cause. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description scriptid503204;...

Configuration Download Detected (Medium)

The system detected a change in the controller configuration that was made via the network. An attacker may use configuration changes to disrupt normal operations, to cause production losses, or to create a security threat. This plugin only works with Tenable.ot. Please visit...

Device Status Modification Detected (Medium)

Changes in the controller state can stop operations altogether or start an operation that should not have been started. These operations can be used by an attacker to disrupt normal operation, cause production losses, or create safety concerns. This plugin only works with Tenable.ot. Please visit...

Device Presence Anomaly Detected (Critical)

It is important to know what assets exist in your network. New assets can indicate unexpected network connections, third-party connectivity, or potential threats to the network. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information...

Abnormal Network Behavior Detected (High)

Abnormal network behavior by unexpected assets can indicate reconnaissance of the network by a potential attacker. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if...

Device Status Query Detected (Critical)

A status query has been sent to the device, which might indicate a reconnaissance activity. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description scriptid503185...

Abnormal Asset Behavior Detected (Low)

This asset behavior is an anomaly that needs to be verified for the root cause. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description scriptid503202;...

Controller Code Upload Detected (Medium)

An upload of the controller code has been detected over the network. When not part of regular operations, a code upload can be used to gather information about the controller behavior as part of reconnaissance activity. This plugin only works with Tenable.ot. Please visit...

Threat Exposure Indicators Detected (Low)

Intrusion detection events may indicate that the network has been compromised and is exposed to malicious entities. It is important to be aware of any such traffic that may indicate reconnaissance activity, attacks on the network, or propagation of a threat to/from other subnets of the network...

Hitachi Energy's RTU500 series Missing synchronization (CVE-2025-1445)

A vulnerability exists in RTU IEC 61850 client and server functionality that could impact the availability if renegotiation of an open IEC61850 TLS connection takes place in specific timing situations, when IEC61850 communication is active. Precondition is that IEC61850 as client or server are...

Hitachi Energy's RTU500 series NULL Pointer Deference (CVE-2024-10037)

A vulnerability exists in the RTU500 web server com- ponent that can cause a denial of service to the RTU500 CMU application if a specially crafted mes- sage sequence is executed on a WebSocket connec- tion. An attacker must be properly authenticated and the test mode function of RTU500 must be...

Microhard 3G/4G Cellular Ethernet and Serial Gateway External Control of File Name or Path (ZSL-2018-5484)

The system backup configuration file 'IPn4G.config' in '/' directory or its respective name based on the model name including the similar files in '/www/cgi-bin/system.conf', '/tmp' and the cli.conf in '/etc/mcli/' can be downloaded by an authenticated attacker in certain circumstances. This will...

Schneider Electric Active Devices Detection

The current plugin identifies Schneider devices that are still under active support. Schneider Lifecycle Statuses: - Active: Most current offering within a product category. - End of Life: Discontinued date announced - actively execute migrations and last time buys. Product generally orderable...

Siemens SCALANCE LPE9403 Improper Check For Dropped Privileges (CVE-2025-27396)

Affected devices do not properly limit the elevation of privileges required to perform certain valid functionality. This could allow an authenticated lowly-privileged remote attacker to escalate their privileges. This plugin only works with Tenable.ot. Please visit...

Siemens SCALANCE M-800 and SC-600 Families Partial String Comparison (CVE-2025-23384)

A remote attacker needs to have access to a valid certificate in order to perform a successful attack. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc. include'compat.inc'; if description...

Siemens SCALANCE LPE9403 Improper Neutralization of Special Elements Used in an OS Command (CVE-2025-27392)

Affected devices do not properly sanitize user input when creating new VXLAN configurations. This could allow an authenticated highly- privileged remote attacker to execute arbitrary code on the device. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-...

Siemens SCALANCE X-200RNA Switch Devices Resource Management Errors (CVE-2015-1788)

The BNGF2mmodinv function in crypto/bn/bngf2m.c in OpenSSL before 0.9.8s, 1.0.0 before 1.0.0e, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b does not properly handle ECParameters structures in which the curve is over a malformed binary polynomial field, which allows remote attackers to cause a...

Siemens SCALANCE X-200RNA Switch Devices Improper Certificate Validation (CVE-2019-1552)

OpenSSL has internal defaults for a directory tree where it can find a configuration file as well as certificates used for verification in TLS. This directory is most commonly referred to as OPENSSLDIR, and is configurable with the --prefix / --openssldir configuration options. For OpenSSL versio...

Siemens SCALANCE X-200RNA Switch Devices Cryptographic Issues (CVE-2015-0285)

The ssl3clienthello function in s3clnt.c in OpenSSL 1.0.2 before 1.0.2a does not ensure that the PRNG is seeded before proceeding with a handshake, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by sniffing the network and then conducting a brute-force...