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CWE-20

13,715 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 (13,715)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Tor
1Tor
Apr 29, 2026
Jan 19, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The tor_realloc function in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not validate a certain size value during memory allocation, which might allow remote attackers to cause a denial of service (daemon c...Show more
The tor_realloc function in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not validate a certain size value during memory allocation, which might allow remote attackers to cause a denial of service (daemon crash) via unspecified vectors, related to "underflow errors."Show less
1Tor
1Tor
Apr 29, 2026
Jan 19, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha does not properly check the amount of compression in zlib-compressed data, which allows remote attackers to cause a denial of service via a large compression factor.
1Php
1Php
Apr 29, 2026
Jan 18, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
PHP before 5.3.4 accepts the \0 character in a pathname, which might allow context-dependent attackers to bypass intended access restrictions by placing a safe file extension after this character, as demonstrated by .php...Show more
PHP before 5.3.4 accepts the \0 character in a pathname, which might allow context-dependent attackers to bypass intended access restrictions by placing a safe file extension after this character, as demonstrated by .php\0.jpg at the end of the argument to the file_exists function.Show less
2Cakefoundation
Cakephp
2Cakephp
Cakephp
Apr 29, 2026
Jan 14, 2011
N/A· v4
N/A· v3
7.5 HIGH· v2
The _validatePost function in libs/controller/components/security.php in CakePHP 1.3.x through 1.3.5 and 1.2.8 allows remote attackers to modify the internal Cake cache and execute arbitrary code via a crafted data[_Toke...Show more
The _validatePost function in libs/controller/components/security.php in CakePHP 1.3.x through 1.3.5 and 1.2.8 allows remote attackers to modify the internal Cake cache and execute arbitrary code via a crafted data[_Token][fields] value that is processed by the unserialize function, as demonstrated by modifying the file_map cache to execute arbitrary local files.Show less
1Google
2Chrome
Chrome Os
Apr 29, 2026
Jan 14, 2011
N/A· v4
N/A· v3
10.0 HIGH· v2
Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344 do not properly handle speech data, which allows remote attackers to execute arbitrary code via unspecified vectors that lead to a "stale pointer."
1Google
2Chrome
Chrome Os
Apr 29, 2026
Jan 14, 2011
N/A· v4
N/A· v3
7.5 HIGH· v2
Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344 do not properly perform DOM node removal, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown...Show more
Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344 do not properly perform DOM node removal, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors that lead to a "stale rendering node."Show less
1Google
2Chrome
Chrome Os
Apr 29, 2026
Jan 14, 2011
N/A· v4
N/A· v3
10.0 HIGH· v2
Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344 do not properly handle SVG use elements, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown...Show more
Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344 do not properly handle SVG use elements, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors that lead to a "stale pointer."Show less
1Google
2Chrome
Chrome Os
Apr 29, 2026
Jan 14, 2011
N/A· v4
N/A· v3
10.0 HIGH· v2
The node-iteration implementation in Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344 does not properly handle pointers, which allows remote attackers to cause a denial of service or possibly have unspec...Show more
The node-iteration implementation in Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344 does not properly handle pointers, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.Show less
1Microsoft
2Data Access Components
Windows Data Access Components
Apr 29, 2026
Jan 12, 2011
N/A· v4
N/A· v3
9.3 HIGH· v2
Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2, and Windows Data Access Components (WDAC) 6.0, does not properly validate memory allocation for internal data structures, which allows remote attackers to execute...Show more
Microsoft Data Access Components (MDAC) 2.8 SP1 and SP2, and Windows Data Access Components (WDAC) 6.0, does not properly validate memory allocation for internal data structures, which allows remote attackers to execute arbitrary code, possibly via a large CacheSize property that triggers an integer wrap and a buffer overflow, aka "ADO Record Memory Vulnerability." NOTE: this might be a duplicate of CVE-2010-1117 or CVE-2010-1118.Show less
1Mediawiki
1Mediawiki
Apr 29, 2026
Jan 11, 2011
N/A· v4
N/A· v3
5.8 MEDIUM· v2
MediaWiki before 1.16.1, when user or site JavaScript or CSS is enabled, allows remote attackers to conduct clickjacking attacks via unspecified vectors.
1Citrix
1Xen
Apr 29, 2026
Jan 11, 2011
N/A· v4
N/A· v3
5.5 MEDIUM· v2
The do_block_io_op function in (1) drivers/xen/blkback/blkback.c and (2) drivers/xen/blktap/blktap.c in Xen before 3.4.0 for the Linux kernel 2.6.18, and possibly other versions, allows guest OS users to cause a denial o...Show more
The do_block_io_op function in (1) drivers/xen/blkback/blkback.c and (2) drivers/xen/blktap/blktap.c in Xen before 3.4.0 for the Linux kernel 2.6.18, and possibly other versions, allows guest OS users to cause a denial of service (infinite loop and CPU consumption) via a large production request index to the blkback or blktap back-end drivers. NOTE: some of these details are obtained from third party information.Show less
1Djangoproject
1Django
Apr 29, 2026
Jan 10, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The password reset functionality in django.contrib.auth in Django before 1.1.3, 1.2.x before 1.2.4, and 1.3.x before 1.3 beta 1 does not validate the length of a string representing a base36 timestamp, which allows remot...Show more
The password reset functionality in django.contrib.auth in Django before 1.1.3, 1.2.x before 1.2.4, and 1.3.x before 1.3 beta 1 does not validate the length of a string representing a base36 timestamp, which allows remote attackers to cause a denial of service (resource consumption) via a URL that specifies a large base36 integer.Show less
1Cisco
1Ios
Apr 29, 2026
Jan 7, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
STCAPP (aka the SCCP telephony control application) on Cisco IOS before 15.0(1)XA1 does not properly handle multiple calls to a shared line, which allows remote attackers to cause a denial of service (port hang) by simul...Show more
STCAPP (aka the SCCP telephony control application) on Cisco IOS before 15.0(1)XA1 does not properly handle multiple calls to a shared line, which allows remote attackers to cause a denial of service (port hang) by simultaneously ending two calls that were controlled by CallManager Express (CME), aka Bug ID CSCtd42552.Show less
1Cisco
1Ios
Apr 29, 2026
Jan 7, 2011
N/A· v4
N/A· v3
7.1 HIGH· v2
Cisco IOS before 15.0(1)XA1, when certain TFTP debugging is enabled, allows remote attackers to cause a denial of service (device crash) via a TFTP copy over IPv6, aka Bug ID CSCtb28877.
1Redhat
1Evince
Apr 29, 2026
Jan 7, 2011
N/A· v4
N/A· v3
7.6 HIGH· v2
Array index error in the VF font parser in the dvi-backend component in Evince 2.32 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted fo...Show more
Array index error in the VF font parser in the dvi-backend component in Evince 2.32 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font in conjunction with a DVI file that is processed by the thumbnailer.Show less
1Redhat
1Evince
Apr 29, 2026
Jan 7, 2011
N/A· v4
N/A· v3
7.6 HIGH· v2
Array index error in the PK font parser in the dvi-backend component in Evince 2.32 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted fo...Show more
Array index error in the PK font parser in the dvi-backend component in Evince 2.32 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font in conjunction with a DVI file that is processed by the thumbnailer.Show less
1Cisco
1Ios
Apr 29, 2026
Jan 7, 2011
N/A· v4
N/A· v3
7.8 HIGH· v2
Cisco IOS before 15.0(1)XA does not properly handle IRC traffic during a specific time period after an initial reload, which allows remote attackers to cause a denial of service (device reload) via an attempted connectio...Show more
Cisco IOS before 15.0(1)XA does not properly handle IRC traffic during a specific time period after an initial reload, which allows remote attackers to cause a denial of service (device reload) via an attempted connection to a certain IRC server, related to a "corrupted magic value," aka Bug ID CSCso05336.Show less
1Cisco
35500 Series Adaptive Security Appliance
Adaptive Security Appliance SoftwareAsa 5500
Apr 29, 2026
Jan 7, 2011
N/A· v4
N/A· v3
7.8 HIGH· v2
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) do not properly handle Online Certificate Status Protocol (OCSP) connection failures, which allows remote OCSP responders to cause...Show more
Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) do not properly handle Online Certificate Status Protocol (OCSP) connection failures, which allows remote OCSP responders to cause a denial of service (TCP socket exhaustion) by rejecting connection attempts, aka Bug ID CSCsz36816.Show less
1Pidgin
2Libpurple
Pidgin
Apr 29, 2026
Jan 7, 2011
N/A· v4
N/A· v3
4.0 MEDIUM· v2
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short...Show more
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short p2pv2 packet in a DirectConnect (aka direct connection) session.Show less
3Linux
OpensuseSuse
5Linux Enterprise Desktop
Linux Enterprise Real Time ExtensionLinux Enterprise Server+2 more
Apr 29, 2026
Jan 3, 2011
N/A· v4
N/A· v3
4.7 MEDIUM· v2
The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 2.6.36.2 allows local users to cause a denial of service (panic) via a zero-length I/O request in a device ioctl to a SCSI device.