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CWE-20

13,703 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 (13,703)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Mit
1Kerberos 5
Apr 29, 2026
Oct 20, 2011
N/A· v4
N/A· v3
7.8 HIGH· v2
The krb5_db2_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4, when the db2 (aka Berkeley DB) back end is used, allows remote attackers to cause a denial of servi...Show more
The krb5_db2_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4, when the db2 (aka Berkeley DB) back end is used, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors, a different vulnerability than CVE-2011-1528.Show less
1Mit
1Kerberos 5
Apr 29, 2026
Oct 20, 2011
N/A· v4
N/A· v3
7.8 HIGH· v2
The lookup_lockout_policy function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the db2 (aka Berkeley DB) or LDAP back end is used, allows remote attacke...Show more
The lookup_lockout_policy function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the db2 (aka Berkeley DB) or LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via vectors that trigger certain process_as_req errors.Show less
1Mit
1Kerberos 5
Apr 29, 2026
Oct 20, 2011
N/A· v4
N/A· v3
7.8 HIGH· v2
The krb5_ldap_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of...Show more
The krb5_ldap_lockout_audit function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors, related to the locked_check_p function. NOTE: the Berkeley DB vector is covered by CVE-2011-4151.Show less
1Mit
1Kerberos 5
Apr 29, 2026
Oct 20, 2011
N/A· v4
N/A· v3
7.8 HIGH· v2
The kdb_ldap plugin in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and...Show more
The kdb_ldap plugin in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a kinit operation with incorrect string case for the realm, related to the is_principal_in_realm, krb5_set_error_message, krb5_ldap_get_principal, and process_as_req functions.Show less
1Djangoproject
1Django
Apr 29, 2026
Oct 19, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Django before 1.2.7 and 1.3.x before 1.3.1 uses a request's HTTP Host header to construct a full URL in certain circumstances, which allows remote attackers to conduct cache poisoning attacks via a crafted request.
1Djangoproject
1Django
Apr 29, 2026
Oct 19, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 originally tests a URL's validity through a HEAD request, but then uses a GET request for the new target URL in...Show more
The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 originally tests a URL's validity through a HEAD request, but then uses a GET request for the new target URL in the case of a redirect, which might allow remote attackers to trigger arbitrary GET requests with an unintended source IP address via a crafted Location header.Show less
1Djangoproject
1Django
Apr 29, 2026
Oct 19, 2011
N/A· v4
N/A· v3
5.8 MEDIUM· v2
django.contrib.sessions in Django before 1.2.7 and 1.3.x before 1.3.1, when session data is stored in the cache, uses the root namespace for both session identifiers and application-data keys, which allows remote attacke...Show more
django.contrib.sessions in Django before 1.2.7 and 1.3.x before 1.3.1, when session data is stored in the cache, uses the root namespace for both session identifiers and application-data keys, which allows remote attackers to modify a session by triggering use of a key that is equal to that session's identifier.Show less
1Apple
2Mac Os X
Mac Os X Server
Apr 29, 2026
Oct 14, 2011
N/A· v4
N/A· v3
6.8 MEDIUM· v2
libsecurity in Apple Mac OS X before 10.7.2 does not properly handle errors during processing of a nonstandard extension in a Certificate Revocation list (CRL), which allows remote attackers to execute arbitrary code or...Show more
libsecurity in Apple Mac OS X before 10.7.2 does not properly handle errors during processing of a nonstandard extension in a Certificate Revocation list (CRL), which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) a crafted (1) web site or (2) e-mail message.Show less
1Microsoft
1Forefront Unified Access Gateway
Apr 29, 2026
Oct 12, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which allows remote attackers to cause a denial of service (IIS outage) via unspecified...Show more
Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which allows remote attackers to cause a denial of service (IIS outage) via unspecified network traffic, aka "Null Session Cookie Crash."Show less
1Microsoft
1Host Integration Server
Apr 29, 2026
Oct 12, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Microsoft Host Integration Server (HIS) 2004 SP1, 2006 SP1, 2009, and 2010 allows remote attackers to cause a denial of service (SNA Server service outage) via crafted TCP or UDP traffic, aka "Access of Unallocated Memor...Show more
Microsoft Host Integration Server (HIS) 2004 SP1, 2006 SP1, 2009, and 2010 allows remote attackers to cause a denial of service (SNA Server service outage) via crafted TCP or UDP traffic, aka "Access of Unallocated Memory DoS Vulnerability."Show less
1Microsoft
1Host Integration Server
Apr 29, 2026
Oct 12, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Microsoft Host Integration Server (HIS) 2004 SP1, 2006 SP1, 2009, and 2010 allows remote attackers to cause a denial of service (SNA Server service outage) via crafted TCP or UDP traffic, aka "Endless Loop DoS in snabase...Show more
Microsoft Host Integration Server (HIS) 2004 SP1, 2006 SP1, 2009, and 2010 allows remote attackers to cause a denial of service (SNA Server service outage) via crafted TCP or UDP traffic, aka "Endless Loop DoS in snabase.exe Vulnerability."Show less
1Microsoft
3Windows 7
Windows Server 2008Windows Vista
Apr 29, 2026
Oct 12, 2011
N/A· v4
N/A· v3
4.7 MEDIUM· v2
win32k.sys in the kernel-mode drivers in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly handle TrueType fonts, which allows local users to cause a denia...Show more
win32k.sys in the kernel-mode drivers in Microsoft Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly handle TrueType fonts, which allows local users to cause a denial of service (system hang) via a crafted font file, aka "Win32k TrueType Font Type Translation Vulnerability."Show less
1Microsoft
1Internet Explorer
Apr 29, 2026
Oct 12, 2011
N/A· v4
N/A· v3
9.3 HIGH· v2
Microsoft Internet Explorer 6 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing a deleted object, aka "OnLoad Event Remote Code Execution Vulnerability."
1Webmanager Pro
1Cms Webmanager Pro
Apr 29, 2026
Oct 8, 2011
N/A· v4
N/A· v3
5.8 MEDIUM· v2
Open redirect vulnerability in c.php in CMS WebManager-Pro 8.1 and earlier allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the url parameter.
1Apache
1Http Server
Apr 29, 2026
Oct 5, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The mod_proxy module in the Apache HTTP Server 1.3.x through 1.3.42, 2.0.x through 2.0.64, and 2.2.x through 2.2.21 does not properly interact with use of (1) RewriteRule and (2) ProxyPassMatch pattern matches for config...Show more
The mod_proxy module in the Apache HTTP Server 1.3.x through 1.3.42, 2.0.x through 2.0.64, and 2.2.x through 2.2.21 does not properly interact with use of (1) RewriteRule and (2) ProxyPassMatch pattern matches for configuration of a reverse proxy, which allows remote attackers to send requests to intranet servers via a malformed URI containing an initial @ (at sign) character.Show less
1Tedfelix
1Acpid
Apr 29, 2026
Oct 5, 2011
N/A· v4
N/A· v3
2.1 LOW· v2
acpid.c in acpid before 2.0.9 does not properly handle a situation in which a process has connected to acpid.socket but is not reading any data, which allows local users to cause a denial of service (daemon hang) via a c...Show more
acpid.c in acpid before 2.0.9 does not properly handle a situation in which a process has connected to acpid.socket but is not reading any data, which allows local users to cause a denial of service (daemon hang) via a crafted application that performs a connect system call but no read system calls.Show less
1Mozilla
2Firefox
Seamonkey
Apr 29, 2026
Sep 29, 2011
N/A· v4
N/A· v3
4.3 MEDIUM· v2
The JSSubScriptLoader in Mozilla Firefox 4.x through 6 and SeaMonkey before 2.4 does not properly handle XPCNativeWrappers during calls to the loadSubScript method in an add-on, which makes it easier for remote attackers...Show more
The JSSubScriptLoader in Mozilla Firefox 4.x through 6 and SeaMonkey before 2.4 does not properly handle XPCNativeWrappers during calls to the loadSubScript method in an add-on, which makes it easier for remote attackers to gain privileges via a crafted web site that leverages certain unwrapping behavior.Show less
1Adobe
1Flash Player
Apr 29, 2026
Sep 22, 2011
N/A· v4
N/A· v3
9.3 HIGH· v2
Adobe Flash Player before 10.3.183.10 on Windows, Mac OS X, Linux, and Solaris, and before 10.3.186.7 on Android, allows remote attackers to execute arbitrary code via crafted streaming media, related to a "logic error v...Show more
Adobe Flash Player before 10.3.183.10 on Windows, Mac OS X, Linux, and Solaris, and before 10.3.186.7 on Android, allows remote attackers to execute arbitrary code via crafted streaming media, related to a "logic error vulnerability."Show less
1Adobe
1Flash Player
Apr 29, 2026
Sep 22, 2011
N/A· v4
N/A· v3
9.3 HIGH· v2
Adobe Flash Player before 10.3.183.10 on Windows, Mac OS X, Linux, and Solaris, and before 10.3.186.7 on Android, allows attackers to execute arbitrary code or cause a denial of service (browser crash) via unspecified ve...Show more
Adobe Flash Player before 10.3.183.10 on Windows, Mac OS X, Linux, and Solaris, and before 10.3.186.7 on Android, allows attackers to execute arbitrary code or cause a denial of service (browser crash) via unspecified vectors, related to a "logic error issue."Show less
1Wireshark
1Wireshark
Apr 29, 2026
Sep 20, 2011
N/A· v4
N/A· v3
4.3 MEDIUM· v2
The unxorFrame function in epan/dissectors/packet-opensafety.c in the OpenSafety dissector in Wireshark 1.6.x before 1.6.2 does not properly validate a certain frame size, which allows remote attackers to cause a denial...Show more
The unxorFrame function in epan/dissectors/packet-opensafety.c in the OpenSafety dissector in Wireshark 1.6.x before 1.6.2 does not properly validate a certain frame size, which allows remote attackers to cause a denial of service (loop and application crash) via a malformed packet.Show less