Siemens SIMATIC S7-1500 Double Free (CVE-2021-22945)

When sending data to an MQTT server, libcurl = 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it again. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC S7-1500 and Ruggedcom ROX Devices Use After Free (CVE-2021-36084)

The CIL compiler in SELinux 3.2 has a use-after-free in cilverifyclassperms called from cilverifyclasspermission and cilpreverifyhelper. 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 Detection of Error Condition Without Action (CVE-2025-26465)

A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. Fo...

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-2017-15422)

Integer overflow in international date handling in International Components for Unicode ICU for C/C++ before 60.1, as used in V8 in Google Chrome prior to 63.0.3239.84 and other products, allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. This plugin only...

Siemens SIMATIC and SCALANCE Integer Overflow to Buffer Overflow (CVE-2025-0725)

When libcurl is asked to perform automatic gzip decompression of content-encoded HTTP responses with the CURLOPTACCEPTENCODING option, using zlib 1.2.0.3 or older, an attacker-controlled integer overflow would make libcurl perform a buffer overflow. This plugin only works with Tenable.ot. Please...

Siemens SIMATIC S7-1500 Out-of-bounds Read (CVE-2021-31239)

An issue found in SQLite SQLite3 v.3.35.4 that could allow a remote attacker to cause a denial of service via the appendvfs.c function. 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-2023-2953)

A vulnerability was found in openldap. This security flaw causes a null pointer dereference in bermemallocx function. 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 Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2017-9048)

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more...

Siemens SIMATIC S7-1500 Improper Input Validation (CVE-2018-19591)

In the GNU C Library aka glibc or libc6 through 2.28, attempting to resolve a crafted hostname via getaddrinfo leads to the allocation of a socket descriptor that is not closed. This is related to the ifnametoindex function. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC S7-1500 and Ruggedcom ROX Devices Improper Neutralization of Special Elements in Output Used by a Downstream Component (CVE-2023-29383)

In Shadow 4.13, it is possible to inject control characters into fields provided to the SUID program chfn change finger. Although it is not possible to exploit this directly e.g., adding a new user fails because \n is in the block list, it is possible to misrepresent the /etc/passwd file when...

Siemens SIMATIC S7-1500 Out-of-bounds Read (CVE-2019-9936)

In SQLite 3.27.2, running fts5 prefix queries inside a transaction could trigger a heap-based buffer over-read in fts5HashEntrySort in sqlite3.c, which may lead to an information leak. This is related to ext/fts5/fts5hash.c. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC S7-1500 Missing Initialization of Resource (CVE-2021-22898)

curl 7.7 through 7.76.1 suffers from an information disclosure when the -t command line option, known as CURLOPTTELNETOPTIONS in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEWENV variables, libcurl could be made to pass on...

Siemens SIMATIC S7-1500 Out-of-bounds Write (CVE-2022-48522)

In Perl 5.34.0, function Sfinduninitvar in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation. 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 Restriction of XML External Entity Reference (CVE-2017-7375)

A flaw in libxml2 allows remote XML entity inclusion with default parser flags i.e., when the caller did not request entity substitution, DTD validation, external DTD subset loading, or default DTD attributes. Depending on the context, this may expose a higher- risk attack surface in libxml2 not...

Siemens SIMATIC S7-1500 Heap-based Buffer Overflow (CVE-2023-32643)

A flaw was found in GLib. The GVariant deserialization code is vulnerable to a heap buffer overflow introduced by the fix for CVE-2023-32665. This bug does not affect any released version of GLib, but does affect GLib distributors who followed the guidance of GLib developers to backport the initi...

Siemens SIMATIC S7-1500 Use After Free (CVE-2020-13630)

ext/fts3/fts3.c in SQLite before 3.32.0 has a use-after-free in fts3EvalNextRow, related to the snippet feature. 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 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 Authentication (CVE-2023-27535)

An authentication bypass vulnerability exists in libcurl 8.0.0 in the FTP connection reuse feature that can result in wrong credentials being used during subsequent transfers. Previously created connections are kept in a connection pool for reuse if they match the current setup. However, certain...

Siemens SIMATIC S7-1500 Improper Input Validation (CVE-2024-26596)

net: dsa: netdevpriv dereference before check on non-DSA netdevice events. 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 scriptid503958;...