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CWE-20

12,815 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 (12,815)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Openssl
1Openssl
Apr 29, 2026
Jan 9, 2014
N/A· v4
N/A· v3
4.3 MEDIUM· v2
The ssl3_take_mac function in ssl/s3_both.c in OpenSSL 1.0.1 before 1.0.1f allows remote TLS servers to cause a denial of service (NULL pointer dereference and application crash) via a crafted Next Protocol Negotiation r...Show more
The ssl3_take_mac function in ssl/s3_both.c in OpenSSL 1.0.1 before 1.0.1f allows remote TLS servers to cause a denial of service (NULL pointer dereference and application crash) via a crafted Next Protocol Negotiation record in a TLS handshake.Show less
1Cisco
1Context Directory Agent
Apr 29, 2026
Jan 8, 2014
N/A· v4
N/A· v3
4.0 MEDIUM· v2
Cisco Context Directory Agent (CDA) allows remote authenticated users to trigger the omission of certain user-interface data via crafted field values, aka Bug ID CSCuj45353.
1Cisco
1Adaptive Security Appliance
Apr 29, 2026
Jan 8, 2014
N/A· v4
N/A· v3
4.3 MEDIUM· v2
The Identity Firewall (IDFW) functionality in Cisco Adaptive Security Appliance (ASA) Software allows remote attackers to change the user-cache contents via a replay attack involving crafted RADIUS Change of Authorizatio...Show more
The Identity Firewall (IDFW) functionality in Cisco Adaptive Security Appliance (ASA) Software allows remote attackers to change the user-cache contents via a replay attack involving crafted RADIUS Change of Authorization (CoA) messages, aka Bug ID CSCuj45332.Show less
1Cisco
1Context Directory Agent
Apr 29, 2026
Jan 8, 2014
N/A· v4
N/A· v3
4.3 MEDIUM· v2
Cisco Context Directory Agent (CDA) allows remote attackers to modify the cache via a replay attack involving crafted RADIUS accounting messages, aka Bug ID CSCuj45383.
1Cisco
1Adaptive Security Appliance
Apr 29, 2026
Jan 8, 2014
N/A· v4
N/A· v3
4.3 MEDIUM· v2
The Identity Firewall (IDFW) functionality in Cisco Adaptive Security Appliance (ASA) Software allows remote attackers to trigger authentication-state modifications via a crafted NetBIOS logout probe response, aka Bug ID...Show more
The Identity Firewall (IDFW) functionality in Cisco Adaptive Security Appliance (ASA) Software allows remote attackers to trigger authentication-state modifications via a crafted NetBIOS logout probe response, aka Bug ID CSCuj45340.Show less
1Cisco
1Nx Os
Apr 29, 2026
Jan 8, 2014
N/A· v4
N/A· v3
4.3 MEDIUM· v2
The BGP implementation in Cisco NX-OS 6.2(2a) and earlier does not properly handle the interaction of UPDATE messages with IPv6, VPNv4, and VPNv6 labeled unicast-address families, which allows remote attackers to cause a...Show more
The BGP implementation in Cisco NX-OS 6.2(2a) and earlier does not properly handle the interaction of UPDATE messages with IPv6, VPNv4, and VPNv6 labeled unicast-address families, which allows remote attackers to cause a denial of service (peer reset) via a crafted message, aka Bug ID CSCuj03174.Show less
1Xen
1Xen
Apr 29, 2026
Jan 7, 2014
N/A· v4
N/A· v3
6.1 MEDIUM· v2
The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service (host crash) by replacing the instruction that causes the VM to exit in one thread with a different instruction in a differ...Show more
The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service (host crash) by replacing the instruction that causes the VM to exit in one thread with a different instruction in a different thread.Show less
1Xen
1Xen
Apr 29, 2026
Jan 7, 2014
N/A· v4
N/A· v3
5.5 MEDIUM· v2
Xen, possibly before 4.0.2, allows local 64-bit PV guests to cause a denial of service (host crash) by specifying user mode execution without user-mode pagetables.
1Linux
1Linux Kernel
Apr 29, 2026
Jan 6, 2014
N/A· v4
N/A· v3
4.9 MEDIUM· v2
The x25_recvmsg function in net/x25/af_x25.c in the Linux kernel before 3.12.4 updates a certain length value without ensuring that an associated data structure has been initialized, which allows local users to obtain se...Show more
The x25_recvmsg function in net/x25/af_x25.c in the Linux kernel before 3.12.4 updates a certain length value without ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.Show less
1Linux
1Linux Kernel
Apr 29, 2026
Jan 6, 2014
N/A· v4
N/A· v3
4.9 MEDIUM· v2
The packet_recvmsg function in net/packet/af_packet.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to o...Show more
The packet_recvmsg function in net/packet/af_packet.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.Show less
1Linux
1Linux Kernel
Apr 29, 2026
Jan 6, 2014
N/A· v4
N/A· v3
4.9 MEDIUM· v2
The nr_recvmsg function in net/netrom/af_netrom.c in the Linux kernel before 3.12.4 updates a certain length value without ensuring that an associated data structure has been initialized, which allows local users to obta...Show more
The nr_recvmsg function in net/netrom/af_netrom.c in the Linux kernel before 3.12.4 updates a certain length value without ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.Show less
1Linux
1Linux Kernel
Apr 29, 2026
Jan 6, 2014
N/A· v4
N/A· v3
4.9 MEDIUM· v2
The ipx_recvmsg function in net/ipx/af_ipx.c in the Linux kernel before 3.12.4 updates a certain length value without ensuring that an associated data structure has been initialized, which allows local users to obtain se...Show more
The ipx_recvmsg function in net/ipx/af_ipx.c in the Linux kernel before 3.12.4 updates a certain length value without ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.Show less
1Linux
1Linux Kernel
Apr 29, 2026
Jan 6, 2014
N/A· v4
N/A· v3
4.9 MEDIUM· v2
The atalk_recvmsg function in net/appletalk/ddp.c in the Linux kernel before 3.12.4 updates a certain length value without ensuring that an associated data structure has been initialized, which allows local users to obta...Show more
The atalk_recvmsg function in net/appletalk/ddp.c in the Linux kernel before 3.12.4 updates a certain length value without ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.Show less
1Linux
1Linux Kernel
Apr 29, 2026
Jan 6, 2014
N/A· v4
N/A· v3
4.9 MEDIUM· v2
The mISDN_sock_recvmsg function in drivers/isdn/mISDN/socket.c in the Linux kernel before 3.12.4 does not ensure that a certain length value is consistent with the size of an associated data structure, which allows local...Show more
The mISDN_sock_recvmsg function in drivers/isdn/mISDN/socket.c in the Linux kernel before 3.12.4 does not ensure that a certain length value is consistent with the size of an associated data structure, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.Show less
1Linux
1Linux Kernel
Apr 29, 2026
Jan 6, 2014
N/A· v4
N/A· v3
4.9 MEDIUM· v2
The pn_recvmsg function in net/phonet/datagram.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain...Show more
The pn_recvmsg function in net/phonet/datagram.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel stack memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.Show less
1Linux
1Linux Kernel
Apr 29, 2026
Jan 6, 2014
N/A· v4
N/A· v3
4.9 MEDIUM· v2
The l2tp_ip_recvmsg function in net/l2tp/l2tp_ip.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obta...Show more
The l2tp_ip_recvmsg function in net/l2tp/l2tp_ip.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel stack memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.Show less
1Linux
1Linux Kernel
Apr 29, 2026
Jan 6, 2014
N/A· v4
N/A· v3
4.9 MEDIUM· v2
The Linux kernel before 3.12.4 updates certain length values before ensuring that associated data structures have been initialized, which allows local users to obtain sensitive information from kernel stack memory via a...Show more
The Linux kernel before 3.12.4 updates certain length values before ensuring that associated data structures have been initialized, which allows local users to obtain sensitive information from kernel stack memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call, related to net/ipv4/ping.c, net/ipv4/raw.c, net/ipv4/udp.c, net/ipv6/raw.c, and net/ipv6/udp.c.Show less
1Opsview
1Opsview
Apr 29, 2026
Jan 3, 2014
N/A· v4
N/A· v3
5.8 MEDIUM· v2
Open redirect vulnerability in Opsview before 4.4.2 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.
1Ibm
2I
Zos
Apr 29, 2026
Jan 2, 2014
N/A· v4
N/A· v3
8.5 HIGH· v2
The OSPF implementation in IBM i 6.1 and 7.1, in z/OS on zSeries servers, and in Networking Operating System (aka NOS, formerly BLADE Operating System) does not properly validate Link State Advertisement (LSA) type 1 pac...Show more
The OSPF implementation in IBM i 6.1 and 7.1, in z/OS on zSeries servers, and in Networking Operating System (aka NOS, formerly BLADE Operating System) does not properly validate Link State Advertisement (LSA) type 1 packets before performing operations on the LSA database, which allows remote attackers to cause a denial of service (routing disruption) or obtain sensitive packet information via a crafted LSA packet, a related issue to CVE-2013-0149.Show less
3Ntp
OpensuseOracle
3Linux
NtpOpensuse
Apr 29, 2026
Jan 2, 2014
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The monlist feature in ntp_request.c in ntpd in NTP before 4.2.7p26 allows remote attackers to cause a denial of service (traffic amplification) via forged (1) REQ_MON_GETLIST or (2) REQ_MON_GETLIST_1 requests, as exploi...Show more
The monlist feature in ntp_request.c in ntpd in NTP before 4.2.7p26 allows remote attackers to cause a denial of service (traffic amplification) via forged (1) REQ_MON_GETLIST or (2) REQ_MON_GETLIST_1 requests, as exploited in the wild in December 2013.Show less