Siemens SIMATIC S7-1500 Improper Input Validation (CVE-2019-12290)

GNU libidn2 before 2.2.0 fails to perform the roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels to U-labels. This makes it possible in some circumstances for one domain to impersonate another. By creating a malicious domain that matches a target domain except for the...

Siemens SIMATIC S7-1500 Expected Behavior Violation (CVE-2022-32221)

When doing HTTPS transfers, libcurl might erroneously use the read callback CURLOPTREADFUNCTION to ask for data to send, even when the CURLOPTPOSTFIELDS option has been set, if the same handle previously was used to issue a PUT request which used that callback. This flaw may surprise the...

Siemens SIMATIC S7-1500 NULL Pointer Dereference (CVE-2019-19242)

SQLite 3.30.1 mishandles pExpr-y.pTab, as demonstrated by the TKCOLUMN case in sqlite3ExprCodeTarget in expr.c. 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 Stack-based Buffer Overflow (CVE-2023-52612)

In the Linux kernel, the following vulnerability has been resolved: crypto: scomp - fix req-dst buffer overflow The req-dst buffer size should be checked before copying from the scompscratch-dst to avoid req-dst buffer overflow problem. This plugin only works with Tenable.ot. Please visit...

Siemens SIMATIC S7-1500 Out-of-bounds Write (CVE-2024-2961)

The iconv function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to it by up to 4 bytes when converting strings to the ISO-2022-CN-EXT character set, which may be used to crash an application or overwrite a neighbouring variable. This plugin only works with...

Siemens SIMATIC S7-1500 Out-of-bounds Write (CVE-2019-3855)

An integer overflow flaw which could lead to an out of bounds write was discovered in libssh2 before 1.8.1 in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server. This plugin...

Siemens SIMATIC S7-1500 Loop with Unreachable Exit Condition (CVE-2018-14567)

libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service infinite loop via a crafted XML file that triggers LZMAMEMLIMITERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035 and CVE-2018-9251. This plugin only works with Tenable.ot...

Siemens SIMATIC S7-1500 Uncontrolled Search Path Element (CVE-2020-15523)

In Python 3.6 through 3.6.10, 3.7 through 3.7.8, 3.8 through 3.8.4rc1, and 3.9 through 3.9.0b4 on Windows, a Trojan horse python3.dll might be used in cases where CPython is embedded in a native application. This occurs because python3X.dll may use an invalid search path for python3.dll loading...

Siemens SIMATIC S7-1500 Out-of-bounds Write (CVE-2019-19906)

cyrus-sasl aka Cyrus SASL 2.1.27 has an out-of-bounds write leading to unauthenticated remote denial-of-service in OpenLDAP via a malformed LDAP packet. The OpenLDAP crash is ultimately caused by an off-by-one error in sasladdstring in common.c in cyrus-sasl. This plugin only works with Tenable.o...

Siemens SIMATIC S7-1500 Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2019-1010022)

DISPUTED GNU Libc current is affected by: Mitigation bypass. The impact is: Attacker may bypass stack guard protection. The component is: nptl. The attack vector is: Exploit stack buffer overflow vulnerability and use this bypass vulnerability to bypass stack guard. NOTE: Upstream comments indica...

Siemens SIMATIC S7-1500 Improper Restriction of XML External Entity Reference (CVE-2013-0340)

expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XMLSetEntityDeclHandler function, which allows remote attackers to cause a denial of service resource consumption, send HTTP requests to intranet servers, or read arbitrary files via a...

Siemens SIMATIC S7-1500 NULL Pointer Dereference (CVE-2019-19880)

exprListAppendList in window.c in SQLite 3.30.1 allows attackers to trigger an invalid pointer dereference because constant integer values in ORDER BY clauses of window definitions are mishandled. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for...

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 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 Heap-based Buffer Overflow (CVE-2025-3277)

An integer overflow can be triggered in SQLite's 'concatws' function. The resulting, truncated integer is then used to allocate a buffer. When SQLite then writes the resulting string to the buffer, it uses the original, untruncated size and thus a wild Heap Buffer overflow of size 4GB can be...

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 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 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 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 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...