Device Status Query Detected (Low)

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 scriptid503182...

Controller Code Modification Detected (Critical)

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

Abnormal Network Behavior Detected (Low)

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 (Medium)

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 scriptid503183...

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...

Device Mode Transition Detected (Low)

The state of the controller code changed, regardless of the state expected by the process. When not part of scheduled maintenance, forcing can be used to introduce hard-to-detect, long-lasting changes that are harmful to operations. This plugin only works with Tenable.ot. Please visit...

OSV-2025-289 Stack-buffer-overflow in ot::Cli::Utils::OutputLine

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=411460530 Crash type: Stack-buffer-overflow READ Crash state: ot::Cli::Utils::OutputLine ot::Cli::Dns::HandleDnsRecordResponse ot::Dns::Client::FinalizeQuery...

Firmware Version Change Detected (High)

Changes in the controller firmware represent a major change in the behavior of the device and usually cause a temporary interruption of operations. An attacker could use firmware changes to add malicious code to the controller, causing it to perform harmful operations which are hard to detect. Th...

Firmware Version Change Detected (Medium)

Changes in the controller firmware represent a major change in the behavior of the device and usually cause a temporary interruption of operations. An attacker could use firmware changes to add malicious code to the controller, causing it to perform harmful operations which are hard to detect. Th...

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...

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...

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 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 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 SIMATIC S7-1500 TM MFP Buffer Access with Incorrect Length Value (CVE-2024-42154)

In the Linux kernel, the following vulnerability has been resolved: tcpmetrics: validate source addr length I don't see anything checking that TCPMETRICSATTRSADDRIPV4 is at least 4 bytes long, and the policy doesn't have an entry for this attribute at all neither does it for IPv6 but v6 is manual...

Siemens SIMATIC S7-1500 TM MFP Double Free (CVE-2024-41046)

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: lantiqetop: fix double free in detach The number of the currently released descriptor is never incremented which results in the same skb being released multiple times. This plugin only works with Tenable.ot. Please...

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 X-200RNA Switch Devices Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2014-8176)

The dtls1clearqueues function in ssl/d1lib.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h frees data structures without considering that application data can arrive between a ChangeCipherSpec message and a Finished message, which allows remote DTLS peers to cause a deni...

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...