← Back
CWE-20

13,776 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.

JSON object

Loading...

CVEs (13,776)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
2Debian
X.org
2Debian Linux
X Server
Aug 29, 2025
Jan 24, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
xorg-x11-server before 1.19.5 was missing length validation in MIT-SCREEN-SAVER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
2Debian
X.org
2Debian Linux
X Server
Aug 29, 2025
Jan 24, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
xorg-x11-server before 1.19.5 was missing length validation in XINERAMA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
2Debian
X.org
2Debian Linux
X Server
Aug 29, 2025
Jan 24, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
xorg-x11-server before 1.19.5 was missing length validation in XFIXES extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
2Debian
X.org
2Debian Linux
X Server
Aug 29, 2025
Jan 24, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
xorg-x11-server before 1.19.5 was missing length validation in XFree86 DRI extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
2Debian
X.org
2Debian Linux
X Server
Aug 29, 2025
Jan 24, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
xorg-x11-server before 1.19.5 was missing length validation in XFree86 DGA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
2Debian
X.org
2Debian Linux
X Server
Aug 29, 2025
Jan 24, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
xorg-x11-server before 1.19.5 was missing length validation in XFree86 VidModeExtension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
2Debian
X.org
2Debian Linux
X Server
Aug 29, 2025
Jan 24, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
2Debian
X.org
2Debian Linux
X Server
Aug 29, 2025
Jan 24, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
xorg-x11-server before 1.19.5 was missing extra length validation in ProcEstablishConnection function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
1Apache
1Nifi
Nov 21, 2024
Jan 23, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A malicious X-ProxyContextPath or X-Forwarded-Context header containing external resources or embedded code could cause remote code execution. The fix to properly handle these headers was applied on the Apache NiFi 1.5.0...Show more
A malicious X-ProxyContextPath or X-Forwarded-Context header containing external resources or embedded code could cause remote code execution. The fix to properly handle these headers was applied on the Apache NiFi 1.5.0 release. Users running a prior 1.x release should upgrade to the appropriate release.Show less
1Apache
1Nifi
Nov 21, 2024
Jan 23, 2018
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A malicious host header in an incoming HTTP request could cause NiFi to load resources from an external server. The fix to sanitize host headers and compare to a controlled whitelist was applied on the Apache NiFi 1.5.0...Show more
A malicious host header in an incoming HTTP request could cause NiFi to load resources from an external server. The fix to sanitize host headers and compare to a controlled whitelist was applied on the Apache NiFi 1.5.0 release. Users running a prior 1.x release should upgrade to the appropriate release.Show less
1Hp
173A2w75a Firmware
A2w76a FirmwareA2w77a Firmware+170 more
Nov 21, 2024
Jan 23, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Insufficient Solution DLL Signature Validation allows potential execution of arbitrary code in HP LaserJet Enterprise printers, HP PageWide Enterprise printers, HP LaserJet Managed printers, HP OfficeJet Enterprise print...Show more
Insufficient Solution DLL Signature Validation allows potential execution of arbitrary code in HP LaserJet Enterprise printers, HP PageWide Enterprise printers, HP LaserJet Managed printers, HP OfficeJet Enterprise printers before 2308937_578479, 2405087_018548, and other firmware versions.Show less
3Canonical
DebianNlnetlabs
3Debian Linux
Ubuntu LinuxUnbound
Nov 21, 2024
Jan 23, 2018
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcar...Show more
A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.Show less
1Powerdns
1Recursor
Nov 21, 2024
Jan 23, 2018
N/A· v4
5.3 MEDIUM· v3
3.5 LOW· v2
When api-config-dir is set to a non-empty value, which is not the case by default, the API in PowerDNS Recursor 4.x up to and including 4.0.6 and 3.x up to and including 3.7.4 allows an authorized user to update the Recu...Show more
When api-config-dir is set to a non-empty value, which is not the case by default, the API in PowerDNS Recursor 4.x up to and including 4.0.6 and 3.x up to and including 3.7.4 allows an authorized user to update the Recursor's ACL by adding and removing netmasks, and to configure forward zones. It was discovered that the new netmask and IP addresses of forwarded zones were not sufficiently validated, allowing an authenticated user to inject new configuration directives into the Recursor's configuration.Show less
1Netgain Systems
1Enterprise Manager
Nov 21, 2024
Jan 23, 2018
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
This vulnerability allows remote attackers to create arbitrary files on vulnerable installations of NetGain Systems Enterprise Manager 7.2.730 build 1034. Although authentication is required to exploit this vulnerability...Show more
This vulnerability allows remote attackers to create arbitrary files on vulnerable installations of NetGain Systems Enterprise Manager 7.2.730 build 1034. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the org.apache.jsp.u.jsp.db.save_005fimage_jsp servlet, which listens on TCP port 8081 by default. When parsing the id parameter, the process does not properly validate user-supplied data, which can allow for the upload of files. An attacker can leverage this vulnerability to execute code under the context of Administrator. Was ZDI-CAN-5117.Show less
1Powerdns
1Recursor
Nov 21, 2024
Jan 22, 2018
N/A· v4
3.7 LOW· v3
4.3 MEDIUM· v2
Improper input validation bugs in DNSSEC validators components in PowerDNS version 4.1.0 allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.
1Nic
1Knot Resolver
Nov 21, 2024
Jan 22, 2018
N/A· v4
3.7 LOW· v3
4.3 MEDIUM· v2
Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.
1Zillya
1Zillya! Antivirus
Jun 17, 2026
Jan 21, 2018
N/A· v4
7.8 HIGH· v3
6.1 MEDIUM· v2
In Zillya! Antivirus 3.0.2230.0, the driver file (zef.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x9C402424.
1Zillya
1Zillya! Antivirus
Jun 17, 2026
Jan 21, 2018
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
In Zillya! Antivirus 3.0.2230.0, the driver file (zef.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x9C40242C.
1Zillya
1Zillya! Antivirus
Jun 17, 2026
Jan 21, 2018
N/A· v4
7.8 HIGH· v3
6.1 MEDIUM· v2
In Zillya! Antivirus 3.0.2230.0, the driver file (zef.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x9C402414.
1Smartmobilesoftware
1Gitstack
Jun 17, 2026
Jan 21, 2018
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An issue was discovered in GitStack through 2.3.10. User controlled input is not sufficiently filtered, allowing an unauthenticated attacker to add a user to the server via the username and password fields to the rest/us...Show more
An issue was discovered in GitStack through 2.3.10. User controlled input is not sufficiently filtered, allowing an unauthenticated attacker to add a user to the server via the username and password fields to the rest/user/ URI.Show less