Siemens SCALANCE and RUGGEDCOM Devices Improper Input Validation (CVE-2024-41035)

USB: core: duplicate endpoint bug. 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 scriptid504502; scriptversion"1.2";...

Siemens SCALANCE and RUGGEDCOM Devices Improper Input Validation (CVE-2024-50295)

net: arc: A warning is shown because ndev-dev and pdev-dev are not the same device. 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 scriptid504563;...

Today’s threat landscape demands a proactive OT security strategy

Today’s threat landscape demands a proactive OT security strategy By John Fokker and Mo Cashman · November 18, 2025 Overview: The operational technology OT security landscape is undergoing rapid transformation, marked by an escalation in advanced threats. As reported in Trellix’s November...

Siemens SCALANCE and RUGGEDCOM Devices Improper Input Validation (CVE-2024-56595)

jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree. When the value of lp is 0 at the beginning of the for loop, it will become negative in the next assignment and we should bail out. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot f...

Siemens SIMATIC S7-1500 Use After Free (CVE-2023-4147)

A use-after-free vulnerability in the Linux kernel's Netfilter functionality when adding a rule with NFTARULECHAINID allows a local user to crash or escalate their privileges on the system. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more...

Siemens SIMATIC and SCALANCE Use After Free (CVE-2023-3776)

A use-after-free vulnerability in the Linux kernel's net/sched: clsfw component can be exploited to achieve local privilege escalation. If tcfchangeindev fails, fwsetparms will immediately return an error after incrementing or decrementing the reference counter in tcfbindfilter. If an attacker ca...

Siemens RUGGEDCOM ROS Devices Improper Check for Unusual or Exceptional Conditions (CVE-2021-42020)

The third-party component, in its TFTP functionality fails to check for null terminations in file names. If an attacker were to exploit this, it could result in data corruption, and possibly a hard-fault of the application. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC S7-1500 Observable Discrepancy (CVE-2020-14145)

The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts where no host key for the server has been cached by the client. NOTE: some reports...

Siemens SIMATIC S7-1500 Improper Certificate Validation (CVE-2021-28363)

The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate validation in some cases involving HTTPS to HTTPS proxies. The initial connection to the HTTPS proxy if an SSLContext isn't given via proxyconfig doesn't verify the hostname of the certificate. This means certificates for...

Siemens SIMATIC S7-1500 Integer Overflow or Wraparound (CVE-2024-42131)

In the Linux kernel, the following vulnerability has been resolved: mm: avoid overflows in dirty throttling logic The dirty throttling logic is interspersed with assumptions that dirty limits in PAGESIZE units fit into 32-bit so that various multiplications fit into 64-bits. If limits end up bein...

Siemens SIMATIC S7-1500 Out-of-bounds Read (CVE-2020-36223)

A flaw was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Values Return Filter control handling, resulting in denial of service double free and out-of-bounds read. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more...

Siemens SIMATIC S7-1500 Integer Overflow or Wraparound (CVE-2019-5435)

An integer overflow in curl's URL API results in a buffer overflow in libcurl 7.62.0 to and including 7.64.1. 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...

Siemens SIMATIC S7-1500 Out-of-bounds Write (CVE-2021-20305)

A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions GOST DSA, EDDSA & ECDSA result in the Elliptic Curve Cryptography point ECC multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allow...

Siemens SIMATIC S7-1500 and Ruggedcom ROX Devices Improper Check for Unusual or Exceptional Conditions (CVE-2024-50602)

An issue was discovered in libexpat before 2.6.4. There is a crash within the XMLResumeParser function because XMLStopParser can stop/suspend an unstarted parser. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL...

Siemens SIMATIC S7-1500 Loop with Unreachable Exit Condition (CVE-2020-36227)

A flaw was discovered in OpenLDAP before 2.4.57 leading to an infinite loop in slapd with the cancelextop Cancel operation, resulting in denial of service. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C...

Siemens SIMATIC S7-1500 Integer Overflow or Wraparound (CVE-2022-22822)

addBinding in xmlparse.c in Expat aka libexpat before 2.4.3 has an integer overflow. 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 scriptid504286;...

Siemens SIMATIC S7-1500 and Ruggedcom ROX Devices Out-of-bounds Write (CVE-2020-21047)

"The libcpu component which is used by libasm of elfutils version 0.177 git 47780c9e, suffers from denial-of-service vulnerability caused by application crashes due to out-of-bounds write CWE-787, off-by-one error CWE-193 and reachable assertion CWE-617 %NASLMINLEVEL 80900 C Tenable, Inc...

Siemens SIMATIC S7-1500 Observable Discrepancy (CVE-2019-13627)

It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC S7-1500 Uncontrolled Recursion (CVE-2021-3997)

A flaw was found in systemd. An uncontrolled recursion in systemd- tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information...

Siemens SIMATIC S7-1500 Improper Certificate Validation (CVE-2020-8286)

The libcurl library versions 7.41.0 to and including 7.73.0 are vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response. This vulnerability could allow an attacker to pass a revoked certificate as valid. This plugin only works with...