CWE-1286
Improper Validation of Syntactic Correctness of Input
Description
The product receives input that is expected to be well-formed - i.e., to comply with a certain syntax - but it does not validate or incorrectly validates that the input complies with the syntax.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-66 · CAPEC-676
CVEs mapped to this weakness (92)
page 2 of 5| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2024-39542 | Hig | 0.49 | 7.5 | 0.00 | Jul 11, 2024 | An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series with MPC10/11 or LC9600, MX304, and Junos OS Evolved on ACX Series and PTX Series allows an unauthenticated, network based… | ||
| CVE-2024-21598 | Hig | 0.49 | 7.5 | 0.01 | Apr 12, 2024 | An Improper Validation of Syntactic Correctness of Input vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). If a BGP update is received over an… | ||
| CVE-2024-3384 | Hig | 0.49 | 7.5 | 0.01 | Apr 10, 2024 | A vulnerability in Palo Alto Networks PAN-OS software enables a remote attacker to reboot PAN-OS firewalls when receiving Windows New Technology LAN Manager (NTLM) packets from Windows servers. Repeated attacks eventually cause the firewall to enter maintenance mode, which… | ||
| CVE-2024-0218 | Hig | 0.49 | 7.5 | 0.01 | Apr 10, 2024 | A Denial of Service (Dos) vulnerability in Nozomi Networks Guardian, caused by improper input validation in certain fields used in the Radius parsing functionality of our IDS, allows an unauthenticated attacker sending specially crafted malformed network packets to cause the IDS… | ||
| CVE-2024-21616 | Hig | 0.49 | 7.5 | 0.01 | Jan 12, 2024 | An Improper Validation of Syntactic Correctness of Input vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). On all Junos OS MX Series and SRX Series platforms, when… | ||
| CVE-2024-21595 | Hig | 0.49 | 7.5 | 0.01 | Jan 12, 2024 | An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). If an attacker sends high rate of specific ICMP… | ||
| CVE-2023-32649 | Hig | 0.49 | 7.5 | 0.01 | Sep 19, 2023 | A Denial of Service (Dos) vulnerability in Nozomi Networks Guardian and CMC, due to improper input validation in certain fields used in the Asset Intelligence functionality of our IDS, allows an unauthenticated attacker to crash the IDS module by sending specially crafted… | ||
| CVE-2023-28985 | Hig | 0.49 | 7.5 | 0.01 | Jul 14, 2023 | An Improper Validation of Syntactic Correctness of Input vulnerability in Intrusion Detection and Prevention (IDP) of Juniper Networks SRX Series and MX Series allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). Continued receipt of this specific… | ||
| CVE-2022-22192 | Hig | 0.49 | 7.5 | 0.01 | Oct 18, 2022 | An Improper Validation of Syntactic Correctness of Input vulnerability in the kernel of Juniper Networks Junos OS Evolved on PTX series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). When an incoming TCP packet destined to the device is… | ||
| CVE-2022-1941 | Hig | 0.49 | 7.5 | 0.01 | Sep 22, 2022 | A parsing vulnerability for the MessageSet type in the ProtocolBuffers versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 3.21.5 for protobuf-cpp, and versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 4.21.5 for protobuf-python… | ||
| CVE-2021-31987 | Hig | 0.49 | 7.5 | 0.01 | Oct 5, 2021 | A user controlled parameter related to SMTP test functionality is not correctly validated making it possible to bypass blocked network recipients. | ||
| CVE-2022-22176 | Hig | 0.48 | 7.4 | 0.00 | Jan 19, 2022 | An Improper Validation of Syntactic Correctness of Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker sending a malformed DHCP packet to cause a crash of jdhcpd and thereby a Denial of Service (DoS).… | ||
| CVE-2026-24092 | Hig | 0.47 | 7.2 | 0.00 | Jun 1, 2026 | Memory Corruption when processing fastboot commands to set display mode. | ||
| CVE-2026-24091 | Hig | 0.47 | 7.2 | 0.00 | Jun 1, 2026 | Memory corruption while processing fastboot commands with improperly formatted input. | ||
| CVE-2026-24089 | Hig | 0.47 | 7.2 | 0.00 | Jun 1, 2026 | Memory corruption while processing fastboot commands with invalid input. | ||
| CVE-2026-24087 | Hig | 0.47 | 7.2 | 0.00 | Jun 1, 2026 | Memory corruption while processing fastboot OEM commands. | ||
| CVE-2025-59785 | Hig | 0.47 | 7.2 | 0.00 | Mar 4, 2026 | Improper validation of API end-point in 2N Access Commander version 3.4.2 and prior allows attacker to bypass password policy for backup file encryption. This vulnerability can only be exploited after authenticating with administrator privileges. | ||
| CVE-2026-0983 | Hig | 0.46 | — | 0.00 | May 18, 2026 | Denial-of-service condition in M-Files Server versions before 26.5.16015.0, before 26.2 LTS, and before 25.8 LTS SR3 allows an authenticated user to cause the MFserver process to crash | ||
| CVE-2026-21527 | Med | 0.43 | 6.5 | 0.08 | Feb 10, 2026 | User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network. | ||
| CVE-2026-48059 | Hig | 0.42 | 7.5 | 0.01 | Jun 12, 2026 | Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the HAProxy PROXY protocol v2 codec in netty leaks native or heap memory on every connection when a client sends a syntactically valid… |
- risk 0.49cvss 7.5epss 0.00
An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series with MPC10/11 or LC9600, MX304, and Junos OS Evolved on ACX Series and PTX Series allows an unauthenticated, network based…
- risk 0.49cvss 7.5epss 0.01
An Improper Validation of Syntactic Correctness of Input vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). If a BGP update is received over an…
- risk 0.49cvss 7.5epss 0.01
A vulnerability in Palo Alto Networks PAN-OS software enables a remote attacker to reboot PAN-OS firewalls when receiving Windows New Technology LAN Manager (NTLM) packets from Windows servers. Repeated attacks eventually cause the firewall to enter maintenance mode, which…
- risk 0.49cvss 7.5epss 0.01
A Denial of Service (Dos) vulnerability in Nozomi Networks Guardian, caused by improper input validation in certain fields used in the Radius parsing functionality of our IDS, allows an unauthenticated attacker sending specially crafted malformed network packets to cause the IDS…
- risk 0.49cvss 7.5epss 0.01
An Improper Validation of Syntactic Correctness of Input vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). On all Junos OS MX Series and SRX Series platforms, when…
- risk 0.49cvss 7.5epss 0.01
An Improper Validation of Syntactic Correctness of Input vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). If an attacker sends high rate of specific ICMP…
- risk 0.49cvss 7.5epss 0.01
A Denial of Service (Dos) vulnerability in Nozomi Networks Guardian and CMC, due to improper input validation in certain fields used in the Asset Intelligence functionality of our IDS, allows an unauthenticated attacker to crash the IDS module by sending specially crafted…
- risk 0.49cvss 7.5epss 0.01
An Improper Validation of Syntactic Correctness of Input vulnerability in Intrusion Detection and Prevention (IDP) of Juniper Networks SRX Series and MX Series allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). Continued receipt of this specific…
- risk 0.49cvss 7.5epss 0.01
An Improper Validation of Syntactic Correctness of Input vulnerability in the kernel of Juniper Networks Junos OS Evolved on PTX series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). When an incoming TCP packet destined to the device is…
- risk 0.49cvss 7.5epss 0.01
A parsing vulnerability for the MessageSet type in the ProtocolBuffers versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 3.21.5 for protobuf-cpp, and versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 4.21.5 for protobuf-python…
- risk 0.49cvss 7.5epss 0.01
A user controlled parameter related to SMTP test functionality is not correctly validated making it possible to bypass blocked network recipients.
- risk 0.48cvss 7.4epss 0.00
An Improper Validation of Syntactic Correctness of Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker sending a malformed DHCP packet to cause a crash of jdhcpd and thereby a Denial of Service (DoS).…
- risk 0.47cvss 7.2epss 0.00
Memory Corruption when processing fastboot commands to set display mode.
- risk 0.47cvss 7.2epss 0.00
Memory corruption while processing fastboot commands with improperly formatted input.
- risk 0.47cvss 7.2epss 0.00
Memory corruption while processing fastboot commands with invalid input.
- risk 0.47cvss 7.2epss 0.00
Memory corruption while processing fastboot OEM commands.
- risk 0.47cvss 7.2epss 0.00
Improper validation of API end-point in 2N Access Commander version 3.4.2 and prior allows attacker to bypass password policy for backup file encryption. This vulnerability can only be exploited after authenticating with administrator privileges.
- risk 0.46cvss —epss 0.00
Denial-of-service condition in M-Files Server versions before 26.5.16015.0, before 26.2 LTS, and before 25.8 LTS SR3 allows an authenticated user to cause the MFserver process to crash
- risk 0.43cvss 6.5epss 0.08
User interface (ui) misrepresentation of critical information in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.
- risk 0.42cvss 7.5epss 0.01
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the HAProxy PROXY protocol v2 codec in netty leaks native or heap memory on every connection when a client sends a syntactically valid…