CWE-159
Improper Handling of Invalid Use of Special Elements
Description
The product does not properly filter, remove, quote, or otherwise manage the invalid use of special elements in user-controlled input, which could cause adverse effect on its behavior and integrity.
Hierarchy (View 1000)
CVEs mapped to this weakness (13)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2019-9505 | Cri | 0.64 | 9.8 | 0.03 | May 8, 2019 | The PrinterLogic Print Management software, versions up to and including 18.3.1.96, does not sanitize special characters allowing for remote unauthorized changes to configuration files. An unauthenticated attacker may be able to remotely execute arbitrary code with SYSTEM… | ||
| CVE-2020-1653 | Hig | 0.49 | 7.5 | 0.02 | Jul 17, 2020 | On Juniper Networks Junos OS devices, a stream of TCP packets sent to the Routing Engine (RE) may cause mbuf leak which can lead to Flexible PIC Concentrator (FPC) crash or the system to crash and restart (vmcore). This issue can be trigged by IPv4 or IPv6 and it is caused only… | ||
| CVE-2020-1648 | Hig | 0.49 | 7.5 | 0.01 | Jul 17, 2020 | On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific BGP packet can lead to a routing process daemon (RPD) crash and restart. This issue can occur even before the BGP session with the peer is established. Repeated receipt of this specific BGP packet… | ||
| CVE-2020-1646 | Hig | 0.49 | 7.5 | 0.01 | Jul 17, 2020 | On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific UPDATE for an EBGP peer can lead to a routing process daemon (RPD) crash and restart. This issue occurs only when the device is receiving and processing the BGP UPDATE for an EBGP peer. This issue… | ||
| CVE-2026-35536 | Hig | 0.40 | 7.2 | 0.00 | Apr 3, 2026 | In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked for crafted characters. | ||
| CVE-2021-21707 | Med | 0.37 | 5.3 | 0.26 | Nov 29, 2021 | In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as… | ||
| CVE-2026-2636 | Med | 0.36 | 5.5 | 0.00 | Feb 25, 2026 | This vulnerability is caused by a CWE‑159: "Improper Handling of Invalid Use of Special Elements" weakness, which leads to an unrecoverable inconsistency in the CLFS.sys driver. This condition forces a call to the KeBugCheckEx function, allowing an unprivileged user to trigger… | ||
| CVE-2021-42375 | Med | 0.36 | 5.5 | 0.00 | Nov 15, 2021 | An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input. | ||
| CVE-2020-29022 | Med | 0.35 | 5.3 | 0.01 | Feb 16, 2021 | Failure to Sanitize host header value on output in the GateManager Web server could allow an attacker to conduct web cache poisoning attacks. This issue affects Secomea GateManager all versions prior to 9.3 | ||
| CVE-2024-51500 | Med | 0.34 | 5.3 | 0.00 | Nov 4, 2024 | Meshtastic firmware is a device firmware for the Meshtastic project. The Meshtastic firmware does not check for packets claiming to be from the special broadcast address (0xFFFFFFFF) which could result in unexpected behavior and potential for DDoS attacks on the network. A… | ||
| CVE-2026-29106 | Med | 0.31 | 5.9 | 0.00 | Mar 19, 2026 | SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Prior to versions 7.15.1 and 8.9.3, the value of the return_id request parameter is copied into the value of an HTML tag attribute which is an event handler and is… | ||
| CVE-2025-61984 | Low | 0.23 | 3.6 | 0.00 | Oct 6, 2025 | ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration… | ||
| CVE-2025-52884 | Low | 0.04 | — | 0.00 | Jun 24, 2025 | RISC Zero is a zero-knowledge verifiable general computing platform, with Ethereum integration. The risc0-ethereum repository contains Solidity verifier contracts, Steel EVM view call library, and supporting code. Prior to versions 2.1.1 and 2.2.0, the `Steel.validateCommitment`… |
- risk 0.64cvss 9.8epss 0.03
The PrinterLogic Print Management software, versions up to and including 18.3.1.96, does not sanitize special characters allowing for remote unauthorized changes to configuration files. An unauthenticated attacker may be able to remotely execute arbitrary code with SYSTEM…
- risk 0.49cvss 7.5epss 0.02
On Juniper Networks Junos OS devices, a stream of TCP packets sent to the Routing Engine (RE) may cause mbuf leak which can lead to Flexible PIC Concentrator (FPC) crash or the system to crash and restart (vmcore). This issue can be trigged by IPv4 or IPv6 and it is caused only…
- risk 0.49cvss 7.5epss 0.01
On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific BGP packet can lead to a routing process daemon (RPD) crash and restart. This issue can occur even before the BGP session with the peer is established. Repeated receipt of this specific BGP packet…
- risk 0.49cvss 7.5epss 0.01
On Juniper Networks Junos OS and Junos OS Evolved devices, processing a specific UPDATE for an EBGP peer can lead to a routing process daemon (RPD) crash and restart. This issue occurs only when the device is receiving and processing the BGP UPDATE for an EBGP peer. This issue…
- risk 0.40cvss 7.2epss 0.00
In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked for crafted characters.
- risk 0.37cvss 5.3epss 0.26
In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as…
- risk 0.36cvss 5.5epss 0.00
This vulnerability is caused by a CWE‑159: "Improper Handling of Invalid Use of Special Elements" weakness, which leads to an unrecoverable inconsistency in the CLFS.sys driver. This condition forces a call to the KeBugCheckEx function, allowing an unprivileged user to trigger…
- risk 0.36cvss 5.5epss 0.00
An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input.
- risk 0.35cvss 5.3epss 0.01
Failure to Sanitize host header value on output in the GateManager Web server could allow an attacker to conduct web cache poisoning attacks. This issue affects Secomea GateManager all versions prior to 9.3
- risk 0.34cvss 5.3epss 0.00
Meshtastic firmware is a device firmware for the Meshtastic project. The Meshtastic firmware does not check for packets claiming to be from the special broadcast address (0xFFFFFFFF) which could result in unexpected behavior and potential for DDoS attacks on the network. A…
- risk 0.31cvss 5.9epss 0.00
SuiteCRM is an open-source, enterprise-ready Customer Relationship Management (CRM) software application. Prior to versions 7.15.1 and 8.9.3, the value of the return_id request parameter is copied into the value of an HTML tag attribute which is an event handler and is…
- risk 0.23cvss 3.6epss 0.00
ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration…
- risk 0.04cvss —epss 0.00
RISC Zero is a zero-knowledge verifiable general computing platform, with Ethereum integration. The risc0-ethereum repository contains Solidity verifier contracts, Steel EVM view call library, and supporting code. Prior to versions 2.1.1 and 2.2.0, the `Steel.validateCommitment`…