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CWE-20

13,744 CVEs • Abstraction: Class • Likelihood of Exploit: High

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

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CVEs (13,744)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Cisco
1Ios
Apr 21, 2026
Sep 29, 2017
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affect...Show more
The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a buffer overflow condition in the DHCP relay subsystem of the affected software. An attacker could exploit this vulnerability by sending a crafted DHCP Version 4 (DHCPv4) packet to an affected system. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a DoS condition. Cisco Bug IDs: CSCsm45390, CSCuw77959.Show less
1Cisco
1Ios
Apr 21, 2026
Sep 29, 2017
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
A vulnerability in the implementation of the PROFINET Discovery and Configuration Protocol (PN-DCP) for Cisco IOS 12.2 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, r...Show more
A vulnerability in the implementation of the PROFINET Discovery and Configuration Protocol (PN-DCP) for Cisco IOS 12.2 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to the improper parsing of ingress PN-DCP Identify Request packets destined to an affected device. An attacker could exploit this vulnerability by sending a crafted PN-DCP Identify Request packet to an affected device and then continuing to send normal PN-DCP Identify Request packets to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. This vulnerability affects Cisco devices that are configured to process PROFINET messages. Beginning with Cisco IOS Software Release 12.2(52)SE, PROFINET is enabled by default on all the base switch module and expansion-unit Ethernet ports. Cisco Bug IDs: CSCuz47179.Show less
1Cisco
1Ios
Apr 21, 2026
Sep 29, 2017
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulti...Show more
Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerabilities are due to the improper parsing of crafted CIP packets destined to an affected device. An attacker could exploit these vulnerabilities by sending crafted CIP packets to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvc43709.Show less
1Cisco
1Ios
Apr 21, 2026
Sep 29, 2017
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulti...Show more
Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerabilities are due to the improper parsing of crafted CIP packets destined to an affected device. An attacker could exploit these vulnerabilities by sending crafted CIP packets to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuz95334.Show less
1Cisco
2Ios
Ios Xe
May 13, 2026
Sep 29, 2017
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
A vulnerability in the Cisco Network Plug and Play application of Cisco IOS 12.4 through 15.6 and Cisco IOS XE 3.3 through 16.4 could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive dat...Show more
A vulnerability in the Cisco Network Plug and Play application of Cisco IOS 12.4 through 15.6 and Cisco IOS XE 3.3 through 16.4 could allow an unauthenticated, remote attacker to gain unauthorized access to sensitive data by using an invalid certificate. The vulnerability is due to insufficient certificate validation by the affected software. An attacker could exploit this vulnerability by supplying a crafted certificate to an affected device. A successful exploit could allow the attacker to conduct man-in-the-middle attacks to decrypt confidential information on user connections to the affected software. Cisco Bug IDs: CSCvc33171.Show less
1Cisco
1Ios Xe
May 13, 2026
Sep 29, 2017
N/A· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability in the web-based Wireless Controller GUI of Cisco IOS XE Software for Cisco 5760 Wireless LAN Controllers, Cisco Catalyst 4500E Supervisor Engine 8-E (Wireless) Switches, and Cisco New Generation Wireless...Show more
A vulnerability in the web-based Wireless Controller GUI of Cisco IOS XE Software for Cisco 5760 Wireless LAN Controllers, Cisco Catalyst 4500E Supervisor Engine 8-E (Wireless) Switches, and Cisco New Generation Wireless Controllers (NGWC) 3850 could allow an authenticated, remote attacker to elevate their privileges on an affected device. The vulnerability is due to incomplete input validation of HTTP requests by the affected GUI, if the GUI connection state or protocol changes. An attacker could exploit this vulnerability by authenticating to the Wireless Controller GUI as a Lobby Administrator user of an affected device and subsequently changing the state or protocol for their connection to the GUI. A successful exploit could allow the attacker to elevate their privilege level to administrator and gain full control of the affected device. This vulnerability affects the following Cisco products if they are running Cisco IOS XE Software Release 3.7.0E, 3.7.1E, 3.7.2E, 3.7.3E, 3.7.4E, or 3.7.5E: Cisco 5760 Wireless LAN Controllers, Cisco Catalyst 4500E Supervisor Engine 8-E (Wireless) Switches, Cisco New Generation Wireless Controllers (NGWC) 3850. Cisco Bug IDs: CSCvd73746.Show less
1Cisco
1Ios Xe
May 13, 2026
Sep 29, 2017
N/A· v4
6.5 MEDIUM· v3
6.1 MEDIUM· v2
A vulnerability in the wireless controller manager of Cisco IOS XE could allow an unauthenticated, adjacent attacker to cause a restart of the switch and result in a denial of service (DoS) condition. The vulnerability i...Show more
A vulnerability in the wireless controller manager of Cisco IOS XE could allow an unauthenticated, adjacent attacker to cause a restart of the switch and result in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by submitting a crafted association request. An exploit could allow the attacker to cause the switch to restart. This vulnerability affects Cisco Catalyst 3650 and 3850 switches running IOS XE Software versions 16.1 through 16.3.3, and acting as wireless LAN controllers (WLC). Cisco Bug IDs: CSCvd45069.Show less
3Opensuse
Opensuse ProjectTcpdump
3Leap
LeapTcpdump
May 13, 2026
Sep 28, 2017
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
print-wb.c in tcpdump before 4.7.4 allows remote attackers to cause a denial of service (segmentation fault and process crash).
1Linux
1Linux Kernel
May 13, 2026
Sep 26, 2017
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
The KVM subsystem in the Linux kernel through 4.13.3 allows guest OS users to cause a denial of service (assertion failure, and hypervisor hang or crash) via an out-of bounds guest_irq value, related to arch/x86/kvm/vmx....Show more
The KVM subsystem in the Linux kernel through 4.13.3 allows guest OS users to cause a denial of service (assertion failure, and hypervisor hang or crash) via an out-of bounds guest_irq value, related to arch/x86/kvm/vmx.c and virt/kvm/eventfd.c.Show less
1Inspircd
1Inspircd
May 13, 2026
Sep 25, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
inspircd in Debian before 2.0.7 does not properly handle unsigned integers. NOTE: This vulnerability exists because of an incomplete fix to CVE-2012-1836.
1Plone
1Plone
May 13, 2026
Sep 25, 2017
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Plone 3.3.0 through 3.3.6 allows remote attackers to inject headers into HTTP responses.
1Cisco
1Ios
May 13, 2026
Sep 25, 2017
N/A· v4
6.5 MEDIUM· v3
6.8 MEDIUM· v2
Cisco IOS before 12.2(33)SXI allows remote authenticated users to cause a denial of service (device reboot).
1Cisco
1Ios
May 13, 2026
Sep 25, 2017
N/A· v4
5.5 MEDIUM· v3
4.9 MEDIUM· v2
Cisco IOS before 12.2(33)SXI allows local users to cause a denial of service (device reboot).
1Ibm
1Api Connect
May 13, 2026
Sep 25, 2017
N/A· v4
4.3 MEDIUM· v3
4.0 MEDIUM· v2
IBM API Connect 5.0.0.0 through 5.0.7.2 could allow an authenticated user to generate an API token when not subscribed to the application plan. IBM X-Force ID: 131545.
1Ibm
1Api Connect
May 13, 2026
Sep 25, 2017
N/A· v4
6.1 MEDIUM· v3
5.8 MEDIUM· v2
IBM API Connect 5.0.0.0 through 5.0.7.2 could allow a remote attacker to hijack the clicking action of the victim. By persuading a victim to visit a malicious Web site, a remote attacker could exploit this vulnerability...Show more
IBM API Connect 5.0.0.0 through 5.0.7.2 could allow a remote attacker to hijack the clicking action of the victim. By persuading a victim to visit a malicious Web site, a remote attacker could exploit this vulnerability to hijack the victim's click actions and possibly launch further attacks against the victim. IBM X-Force ID: 131291.Show less
1Nvidia
1Gpu Driver
May 13, 2026
Sep 22, 2017
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where a value passed from a user to the driver is not correctly validated and used as the index...Show more
NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where a value passed from a user to the driver is not correctly validated and used as the index to an array which may lead to denial of service or possible escalation of privileges.Show less
1Nvidia
1Gpu Driver
May 13, 2026
Sep 22, 2017
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
NVIDIA GPU Display Driver contains a vulnerability in the kernel mode layer handler where a value passed from a user to the driver is not correctly validated and used as the index to an array which may lead to a denial o...Show more
NVIDIA GPU Display Driver contains a vulnerability in the kernel mode layer handler where a value passed from a user to the driver is not correctly validated and used as the index to an array which may lead to a denial of service or possible escalation of privileges.Show less
1Nvidia
1Gpu Driver
May 13, 2026
Sep 22, 2017
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where a pointer passed from a user to the driver is used without validation which may lead to d...Show more
NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where a pointer passed from a user to the driver is used without validation which may lead to denial of service or possible escalation of privileges.Show less
1Nvidia
1Gpu Driver
May 13, 2026
Sep 22, 2017
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where a value passed from a user to the driver is not correctly validated and used as the index...Show more
NVIDIA Windows GPU Display Driver contains a vulnerability in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape where a value passed from a user to the driver is not correctly validated and used as the index to an array which may lead to denial of service or possible escalation of privileges.Show less
1Horde
1Horde Image Api
May 13, 2026
Sep 21, 2017
N/A· v4
8.1 HIGH· v3
6.8 MEDIUM· v2
A Remote Code Execution vulnerability has been found in the Horde_Image library when using the "Im" backend that utilizes ImageMagick's "convert" utility. It's not exploitable through any Horde application, because the c...Show more
A Remote Code Execution vulnerability has been found in the Horde_Image library when using the "Im" backend that utilizes ImageMagick's "convert" utility. It's not exploitable through any Horde application, because the code path to the vulnerability is not used by any Horde code. Custom applications using the Horde_Image library might be affected. This vulnerability affects all versions of Horde_Image from 2.0.0 to 2.5.1, and is fixed in 2.5.2. The problem is missing input validation of the index field in _raw() during construction of an ImageMagick command line.Show less