Siemens SIMATIC S7-1500 Missing Encryption of Sensitive Data (CVE-2019-7309)

In the GNU C Library aka glibc or libc6 through 2.29, the memcmp function for the x32 architecture can incorrectly return zero indicating that the inputs are equal because the RDX most significant bit is mishandled. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC S7-1500 NULL Pointer Dereference (CVE-2021-4209)

A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances. This plugin only works with Tenable.ot. Pleas...

Siemens SIMATIC S7-1500 Out-of-bounds Read (CVE-2019-17594)

There is a heap-based buffer over-read in the ncfindentry function in tinfo/comphash.c in the terminfo library in ncurses before 6.1-20191012. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc...

Siemens SIMATIC S7-1500 Improper Input Validation (CVE-2025-21766)

ipv4: use RCU protection in iprtupdatepmtu. iprtupdatepmtu must use RCU protection to make sure the net structure it reads does not disappear. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEVEL 80900 C Tenable, Inc...

Siemens SIMATIC S7-1500 NULL Pointer Dereference (CVE-2024-33600)

nscd: Null pointer crashes after notfound response If the Name Service Cache Daemon's nscd cache fails to add a not-found netgroup response to the cache, the client request can result in a null pointer dereference. This flaw was introduced in glibc 2.15 when the cache was added to nscd. This...

Siemens SIMATIC S7-1500 Missing Encryption of Sensitive Data (CVE-2021-41617)

sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with...

Siemens SIMATIC S7-1500 Use of Insufficiently Random Values (CVE-2020-11501)

GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 2018-07-16 because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks...

Siemens SIMATIC S7-1500 Allocation of Resources Without Limits or Throttling (CVE-2023-23916)

An allocation of resources without limits or throttling vulnerability exists in curl v7.88.0 based on the chained HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable links in this...

Siemens SIMATIC S7-1500 Out-of-bounds Read (CVE-2019-3862)

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSHMSGCHANNELREQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory. This plugin...

Siemens SIMATIC S7-1500 and Ruggedcom ROX Devices Inefficient Algorithmic Complexity (CVE-2024-12133)

A flaw in libtasn1 causes inefficient handling of specific certificate data. When processing a large number of elements in a certificate, libtasn1 takes much longer than expected, which can slow down or even crash the system. This flaw allows an attacker to send a specially crafted certificate,...

Siemens SIMATIC S7-1500 Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2016-4658)

xpointer.c in libxml2 before 2.9.5 as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service use-after-free an...

Siemens SIMATIC S7-1500 Improper Restriction of XML External Entity Reference (CVE-2016-9318)

libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity XXE attacks via a crafte...

Siemens SIMATIC S7-1500 Incorrect Conversion between Numeric Types (CVE-2021-27219)

An issue was discovered in GNOME GLib before 2.66.6 and 2.67.x before 2.67.3. The function gbytesnew has an integer overflow on 64-bit platforms due to an implicit cast from 64 bits to 32 bits. The overflow could potentially lead to memory corruption. This plugin only works with Tenable.ot. Pleas...

Siemens SIMATIC S7-1500 Heap-based Buffer Overflow (CVE-2023-38545)

This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake. When curl is asked to pass along the hostname to the SOCKS5 proxy to allow that to resolve the address instead of it getting done by curl itself, the maximum length that hostname can be is 255 bytes. If the hostname ...

Siemens SIMATIC S7-1500 Missing Encryption of Sensitive Data (CVE-2020-36226)

A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch-bvlen miscalculation and slapd crash in the saslAuthzTo processing, resulting in denial of service. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information. %NASLMINLEV...

Siemens SIMATIC S7-1500 Improper Input Validation (CVE-2025-21702)

pfifotailenqueue: Drop new packet when sch-limit == 0. 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 scriptid503912; scriptversion"1.2";...

Siemens SIMATIC S7-1500 Observable Discrepancy (CVE-2023-5981)

A vulnerability was found that the response times to malformed ciphertexts in RSA-PSK ClientKeyExchange differ from response times of ciphertexts with correct PKCS1 v1.5 padding. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information...

Siemens SIMATIC S7-1500 Unrestricted Upload of File with Dangerous Type (CVE-2019-19925)

zipfileUpdate in ext/misc/zipfile.c in SQLite 3.30.1 mishandles a NULL pathname during an update of a ZIP archive. 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 Insufficient Verification of Data Authenticity (CVE-2021-22947)

When curl = 7.20.0 and = 7.20.0 and = 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade...

Siemens SIMATIC S7-1500 Deadlock (CVE-2024-27032)

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid potential panic during recovery During recovery, if FAULTBLOCK is on, it is possible that f2fsreservenewblock will return -ENOSPC during recovery, then it may trigger panic. Also, if fault injection rate is 1 a...