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CWE-287

4,504 CVEs • Abstraction: Class • Likelihood of Exploit: High

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

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CVEs (4,504)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Dlink
1Dap 1860 Firmware
Jun 17, 2026
Dec 5, 2019
N/A· v4
8.8 HIGH· v3
8.3 HIGH· v2
D-Link DAP-1860 devices before v1.04b03 Beta allow access to administrator functions without authentication via the HNAP_AUTH header timestamp value. In HTTP requests, part of the HNAP_AUTH header is the timestamp used t...Show more
D-Link DAP-1860 devices before v1.04b03 Beta allow access to administrator functions without authentication via the HNAP_AUTH header timestamp value. In HTTP requests, part of the HNAP_AUTH header is the timestamp used to determine the time when the user sent the request. If this value is equal to the value stored in the device's /var/hnap/timestamp file, the request will pass the HNAP_AUTH check function.Show less
1Openbsd
1Openbsd
Jun 17, 2026
Dec 5, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
libc in OpenBSD 6.6 allows authentication bypass via the -schallenge username, as demonstrated by smtpd, ldapd, or radiusd. This is related to gen/auth_subr.c and gen/authenticate.c in libc (and login/login.c and xenocar...Show more
libc in OpenBSD 6.6 allows authentication bypass via the -schallenge username, as demonstrated by smtpd, ldapd, or radiusd. This is related to gen/auth_subr.c and gen/authenticate.c in libc (and login/login.c and xenocara/app/xenodm/greeter/verify.c).Show less
1Openbsd
1Openbsd
Jun 17, 2026
Dec 5, 2019
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
In OpenBSD 6.6, local users can use the su -L option to achieve any login class (often excluding root) because there is a logic error in the main function in su/su.c.
1Redhat
1Keycloak
Jun 17, 2026
Dec 4, 2019
N/A· v4
8.3 HIGH· v3
7.5 HIGH· v2
A vulnerability was found in Keycloak 7.x where the user federation LDAP bind type is none (LDAP anonymous bind), any password, invalid or valid will be accepted.
1Json Pattern Validator Project
1Json Pattern Validator
Jun 17, 2026
Dec 2, 2019
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
In jpv (aka Json Pattern Validator) before 2.1.1, compareCommon() can be bypassed because certain internal attributes can be overwritten via a conflicting name, as demonstrated by 'constructor': {'name':'Array'}. This af...Show more
In jpv (aka Json Pattern Validator) before 2.1.1, compareCommon() can be bypassed because certain internal attributes can be overwritten via a conflicting name, as demonstrated by 'constructor': {'name':'Array'}. This affects validate(). Hence, a crafted payload can overwrite this builtin attribute to manipulate the type detection result.Show less
1Anviz
1Management System
Jun 17, 2026
Dec 2, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Anviz access control devices allow unverified password change which allows remote attackers to change the administrator password without prior authentication.
1Huawei
2Band 2 Firmware
Band 3 Firmware
Jun 17, 2026
Nov 29, 2019
N/A· v4
8.8 HIGH· v3
5.8 MEDIUM· v2
There is an insufficient authentication vulnerability in Huawei Band 2 and Honor Band 3. The band does not sufficiently authenticate the device try to connect to it in certain scenario. Successful exploit could allow the...Show more
There is an insufficient authentication vulnerability in Huawei Band 2 and Honor Band 3. The band does not sufficiently authenticate the device try to connect to it in certain scenario. Successful exploit could allow the attacker to spoof then connect to the band.Show less
2Debian
Ruby Lang
2Debian Linux
Ruby
Jun 17, 2026
Nov 26, 2019
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server that uses...Show more
WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server that uses DigestAuth to the Internet or a untrusted network.Show less
1F5
11Big Ip Access Policy Manager
Big Ip Advanced Firewall ManagerBig Ip Analytics+8 more
Jun 17, 2026
Nov 26, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
BIG-IP configurations using Active Directory, LDAP, or Client Certificate LDAP for management authentication with multiple servers are exposed to a vulnerability which allows an authentication bypass. This can result in...Show more
BIG-IP configurations using Active Directory, LDAP, or Client Certificate LDAP for management authentication with multiple servers are exposed to a vulnerability which allows an authentication bypass. This can result in a complete compromise of the system. This issue only impacts specific engineering hotfixes using the aforementioned authentication configuration. NOTE: This vulnerability does not affect any of the BIG-IP major, minor or maintenance releases you obtained from downloads.f5.com. The affected Engineering Hotfix builds are as follows: Hotfix-BIGIP-14.1.0.3.0.79.6-ENG.iso, Hotfix-BIGIP-14.1.0.3.0.97.6-ENG.iso, Hotfix-BIGIP-14.1.0.3.0.99.6-ENG.iso, Hotfix-BIGIP-14.1.0.5.0.15.5-ENG.iso, Hotfix-BIGIP-14.1.0.5.0.36.5-ENG.iso, Hotfix-BIGIP-14.1.0.5.0.40.5-ENG.iso, Hotfix-BIGIP-14.1.0.6.0.11.9-ENG.iso, Hotfix-BIGIP-14.1.0.6.0.14.9-ENG.iso, Hotfix-BIGIP-14.1.0.6.0.68.9-ENG.iso, Hotfix-BIGIP-14.1.0.6.0.70.9-ENG.iso, Hotfix-BIGIP-14.1.2.0.11.37-ENG.iso, Hotfix-BIGIP-14.1.2.0.18.37-ENG.iso, Hotfix-BIGIP-14.1.2.0.32.37-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.46.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.14.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.16.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.34.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.97.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.99.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.105.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.111.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.115.4-ENG.iso, Hotfix-BIGIP-14.1.2.1.0.122.4-ENG.iso, Hotfix-BIGIP-15.0.1.0.33.11-ENG.iso, Hotfix-BIGIP-15.0.1.0.48.11-ENG.isoShow less
2Opensuse
Redhat
4Ansible
Backports SleLeap+1 more
Jun 17, 2026
Nov 26, 2019
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
ansible before versions 2.8.6, 2.7.14, 2.6.20 is vulnerable to a None
1Cisco
6Webex Event Center
Webex Meeting CenterWebex Meetings Online+3 more
Jun 17, 2026
Nov 26, 2019
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
A vulnerability in web interface of the Cisco Webex Event Center, Cisco Webex Meeting Center, Cisco Webex Support Center, and Cisco Webex Training Center could allow an unauthenticated, remote attacker to guess account u...Show more
A vulnerability in web interface of the Cisco Webex Event Center, Cisco Webex Meeting Center, Cisco Webex Support Center, and Cisco Webex Training Center could allow an unauthenticated, remote attacker to guess account usernames. The vulnerability is due to missing CAPTCHA protection in certain URLs. An attacker could exploit this vulnerability by sending a crafted request to the web interface. A successful exploit could allow the attacker to know if a given username is valid and find the real name of the user.Show less
1Abb
2Plant Connect
Power Generation Information Manager
Jun 17, 2026
Nov 26, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
In all versions of ABB Power Generation Information Manager (PGIM) and Plant Connect, the affected product is vulnerable to authentication bypass, which may allow an attacker to remotely bypass authentication and extract...Show more
In all versions of ABB Power Generation Information Manager (PGIM) and Plant Connect, the affected product is vulnerable to authentication bypass, which may allow an attacker to remotely bypass authentication and extract credentials from the affected device.Show less
1Broadcom
1Symantec Critical System Protection
Jun 17, 2026
Nov 25, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Symantec Critical System Protection (CSP), versions 8.0, 8.0 HF1 & 8.0 MP1, may be susceptible to an authentication bypass vulnerability, which is a type of issue that can potentially allow a threat actor to circumvent e...Show more
Symantec Critical System Protection (CSP), versions 8.0, 8.0 HF1 & 8.0 MP1, may be susceptible to an authentication bypass vulnerability, which is a type of issue that can potentially allow a threat actor to circumvent existing authentication controls.Show less
1Hp
1Thinpro Linux
Jun 17, 2026
Nov 22, 2019
N/A· v4
6.8 MEDIUM· v3
4.6 MEDIUM· v2
An attacker may be able to bypass the OS application filter meant to restrict applications that can be executed by changing browser preferences to launch a separate process that in turn can execute arbitrary commands.
1Mcafee
1Client Proxy
Jun 17, 2026
Nov 22, 2019
N/A· v4
8.6 HIGH· v3
6.8 MEDIUM· v2
Authentication Bypass vulnerability in the Microsoft Windows client in McAfee Client Proxy (MCP) prior to 3.0.0 allows local user to bypass scanning of web traffic and gain access to blocked sites for a short period of t...Show more
Authentication Bypass vulnerability in the Microsoft Windows client in McAfee Client Proxy (MCP) prior to 3.0.0 allows local user to bypass scanning of web traffic and gain access to blocked sites for a short period of time via generating an authorization key on the client which should only be generated by the network administrator.Show less
1Wolfssl
1Wolfssl
Nov 21, 2024
Nov 21, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
wolfssl before 3.2.0 has a server certificate that is not properly authorized for server authentication.
1Sangoma
1Freepbx
Jun 17, 2026
Nov 21, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Sangoma FreePBX 115.0.16.26 and below, 14.0.13.11 and below, 13.0.197.13 and below have Incorrect Access Control.
1Zyxel
9Gs1900 10hp Firmware
Gs1900 16 FirmwareGs1900 24 Firmware+6 more
Jun 17, 2026
Nov 14, 2019
N/A· v4
9.1 CRITICAL· v3
6.4 MEDIUM· v2
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. Through an undocumented sequence of keypresses, undocumented functionality is triggered. A diagnostics shell is triggered via CTRL-ALT-...Show more
An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. Through an undocumented sequence of keypresses, undocumented functionality is triggered. A diagnostics shell is triggered via CTRL-ALT-t, which prompts for the password returned by fds_sys_passDebugPasswd_ret(). The firmware contains access control checks that determine if remote users are allowed to access this functionality. The function that performs this check (fds_sys_remoteDebugEnable_ret in libfds.so) always return TRUE with no actual checks performed. The diagnostics menu allows for reading/writing arbitrary registers and various other configuration parameters which are believed to be related to the network interface chips.Show less
1Netgear
1Wndr4700 Firmware
Nov 21, 2024
Nov 14, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An Authentication Bypass vulnerability exists in NETGEAR Centria WNDR4700 Firmware 1.0.0.34 in http://<router_ip>/apply.cgi?/hdd_usr_setup.htm that when visited by any user, authenticated or not, causes the router to no...Show more
An Authentication Bypass vulnerability exists in NETGEAR Centria WNDR4700 Firmware 1.0.0.34 in http://<router_ip>/apply.cgi?/hdd_usr_setup.htm that when visited by any user, authenticated or not, causes the router to no longer require a password to access the web administration portal.Show less
1Intel
1Baseboard Management Controller Firmware
Jun 17, 2026
Nov 14, 2019
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
Authentication bypass in Intel(R) Baseboard Management Controller firmware may allow an unauthenticated user to potentially enable information disclosure, escalation of privilege and/or denial of service via local access...Show more
Authentication bypass in Intel(R) Baseboard Management Controller firmware may allow an unauthenticated user to potentially enable information disclosure, escalation of privilege and/or denial of service via local access.Show less