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CWE-287

5,258 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 (5,258)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Netsetman
1Netsetman
Jun 17, 2026
Jun 10, 2021
N/A· v4
6.8 MEDIUM· v3
7.2 HIGH· v2
An unauthenticated attacker with physical access to a computer with NetSetMan Pro before 5.0 installed, that has the pre-logon profile switch button within the Windows logon screen enabled, is able to drop to an administ...Show more
An unauthenticated attacker with physical access to a computer with NetSetMan Pro before 5.0 installed, that has the pre-logon profile switch button within the Windows logon screen enabled, is able to drop to an administrative shell and execute arbitrary commands as SYSTEM via the "save log to file" feature. To accomplish this, the attacker can navigate to cmd.exe.Show less
1Intel
2Realsense Id F450 Firmware
Realsense Id F455 Firmware
Jun 17, 2026
Jun 9, 2021
N/A· v4
6.8 MEDIUM· v3
4.6 MEDIUM· v2
Improper authentication in some Intel(R) RealSense(TM) IDs may allow an unauthenticated user to potentially enable escalation of privilege via physical access.
1Bosch
3Cpp6 Firmware
Cpp7.3 FirmwareCpp7 Firmware
Jun 17, 2026
Jun 9, 2021
N/A· v4
9.1 CRITICAL· v3
6.4 MEDIUM· v2
A Missing Authentication in Critical Function in Bosch IP cameras allows an unauthenticated remote attacker to extract sensitive information or change settings of the camera by sending crafted requests to the device. Onl...Show more
A Missing Authentication in Critical Function in Bosch IP cameras allows an unauthenticated remote attacker to extract sensitive information or change settings of the camera by sending crafted requests to the device. Only devices of the CPP6, CPP7 and CPP7.3 family with firmware 7.70, 7.72, and 7.80 prior to B128 are affected by this vulnerability. Versions 7.62 or lower and INTEOX cameras are not affected.Show less
1Silverstripe
1Silverstripe
Jun 17, 2026
Jun 8, 2021
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
In SilverStripe through 4.6.0-rc1, GraphQL doesn't honour MFA (multi-factor authentication) when using basic authentication.
1Chiyu Tech
10Bf 430 Firmware
Bf 431 FirmwareBf 450m Firmware+7 more
Jun 17, 2026
Jun 4, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An authentication bypass in telnet server in BF-430 and BF431 232/422 TCP/IP Converter, BF-450M and SEMAC from CHIYU Technology Inc allows obtaining a privileged connection with the target device by supplying a specially...Show more
An authentication bypass in telnet server in BF-430 and BF431 232/422 TCP/IP Converter, BF-450M and SEMAC from CHIYU Technology Inc allows obtaining a privileged connection with the target device by supplying a specially malformed request and an attacker may force the remote telnet server to believe that the user has already authenticated.Show less
1Openvpn
1Openvpn Access Server
Jun 17, 2026
Jun 4, 2021
N/A· v4
5.3 MEDIUM· v3
3.5 LOW· v2
OpenVPN Access Server 2.8.7 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially tri...Show more
OpenVPN Access Server 2.8.7 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks.Show less
1Redhat
1Satellite
Jun 17, 2026
Jun 2, 2021
N/A· v4
7.5 HIGH· v3
6.0 MEDIUM· v2
An account takeover flaw was found in Red Hat Satellite 6.7.2 onward. A potential attacker with proper authentication to the relevant external authentication source (SSO or Open ID) can claim the privileges of already ex...Show more
An account takeover flaw was found in Red Hat Satellite 6.7.2 onward. A potential attacker with proper authentication to the relevant external authentication source (SSO or Open ID) can claim the privileges of already existing local users of Satellite.Show less
1Redhat
1Single Sign On
Jun 17, 2026
Jun 1, 2021
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra priv...Show more
A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.Show less
1Dav Cogs Project
1Dav Cogs
Jun 17, 2026
May 28, 2021
N/A· v4
7.3 HIGH· v3
7.5 HIGH· v2
Roomer is a discord bot cog (extension) which provides automatic voice channel generation as well as private voice and text channels. A vulnerability has been discovered allowing discord users to get the ``manage channel...Show more
Roomer is a discord bot cog (extension) which provides automatic voice channel generation as well as private voice and text channels. A vulnerability has been discovered allowing discord users to get the ``manage channel`` permissions in a private VC they have joined. This allowed them to make changes to or delete the voice channel they have taken over. The exploit does not allow access or control to any other channels in the server. Upgrade to version 1.0.1 for a patched version of the cog. As a workaround you may disable private VCs in your guild(server) or unload the roomer cog to render the exploit unusable.Show less
1Authelia
1Authelia
Jun 17, 2026
May 28, 2021
N/A· v4
10.0 CRITICAL· v3
7.5 HIGH· v2
Authelia is a a single sign-on multi-factor portal for web apps. This affects uses who are using nginx ngx_http_auth_request_module with Authelia, it allows a malicious individual who crafts a malformed HTTP request to b...Show more
Authelia is a a single sign-on multi-factor portal for web apps. This affects uses who are using nginx ngx_http_auth_request_module with Authelia, it allows a malicious individual who crafts a malformed HTTP request to bypass the authentication mechanism. It additionally could theoretically affect other proxy servers, but all of the ones we officially support except nginx do not allow malformed URI paths. The problem is rectified entirely in v4.29.3. As this patch is relatively straightforward we can back port this to any version upon request. Alternatively we are supplying a git patch to 4.25.1 which should be relatively straightforward to apply to any version, the git patches for specific versions can be found in the references. The most relevant workaround is upgrading. You can also add a block which fails requests that contains a malformed URI in the internal location block.Show less
1Kiali
1Kiali
Jun 17, 2026
May 28, 2021
N/A· v4
6.5 MEDIUM· v3
5.8 MEDIUM· v2
An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by t...Show more
An authentication bypass vulnerability was found in Kiali in versions before 1.31.0 when the authentication strategy `OpenID` is used. When RBAC is enabled, Kiali assumes that some of the token validation is handled by the underlying cluster. When OpenID `implicit flow` is used with RBAC turned off, this token validation doesn't occur, and this allows a malicious user to bypass the authentication.Show less
1Sysjust
1Cts Web
Jun 17, 2026
May 28, 2021
N/A· v4
5.4 MEDIUM· v3
5.5 MEDIUM· v2
The CTS Web transaction system related to authentication management is implemented incorrectly. After login, remote attackers can manipulate cookies to access other accounts and trade in the stock market with spoofed ide...Show more
The CTS Web transaction system related to authentication management is implemented incorrectly. After login, remote attackers can manipulate cookies to access other accounts and trade in the stock market with spoofed identity.Show less
1Sysjust
1Cts Web
Jun 17, 2026
May 28, 2021
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
The CTS Web transaction system related to authentication and session management is implemented incorrectly, which allows remote unauthenticated attackers can send a large number of valid usernames, and force those logged...Show more
The CTS Web transaction system related to authentication and session management is implemented incorrectly, which allows remote unauthenticated attackers can send a large number of valid usernames, and force those logged-in account to log out, causing the user to be unable to access the servicesShow less
1Redhat
1Ansible Tower
Jun 17, 2026
May 27, 2021
N/A· v4
7.1 HIGH· v3
3.6 LOW· v2
A security flaw was found in Ansible Tower when requesting an OAuth2 token with an OAuth2 application. Ansible Tower uses the token to provide authentication. This flaw allows an attacker to obtain a refresh token that d...Show more
A security flaw was found in Ansible Tower when requesting an OAuth2 token with an OAuth2 application. Ansible Tower uses the token to provide authentication. This flaw allows an attacker to obtain a refresh token that does not expire. The original token granted to the user still has access to Ansible Tower, which allows any user that can gain access to the token to be fully authenticated to Ansible Tower. This flaw affects Ansible Tower versions before 3.6.4 and Ansible Tower versions before 3.5.6.Show less
1Versa Networks
1Versa Director
Nov 21, 2024
May 26, 2021
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
In Versa Director, the un-authentication request found.
2Fedoraproject
Yubico
2Fedora
Pam U2f
Jun 17, 2026
May 26, 2021
N/A· v4
6.8 MEDIUM· v3
4.6 MEDIUM· v2
Yubico pam-u2f before 1.1.1 has a logic issue that, depending on the pam-u2f configuration and the application used, could lead to a local PIN bypass. This issue does not allow user presence (touch) or cryptographic sign...Show more
Yubico pam-u2f before 1.1.1 has a logic issue that, depending on the pam-u2f configuration and the application used, could lead to a local PIN bypass. This issue does not allow user presence (touch) or cryptographic signature verification to be bypassed, so an attacker would still need to physically possess and interact with the YubiKey or another enrolled authenticator. If pam-u2f is configured to require PIN authentication, and the application using pam-u2f allows the user to submit NULL as the PIN, pam-u2f will attempt to perform a FIDO2 authentication without PIN. If this authentication is successful, the PIN requirement is bypassed.Show less
5Bluetooth
DebianFedoraproject+2 more
19Ac 1550 Firmware
Ac 3165 FirmwareAc 3168 Firmware+16 more
Jun 17, 2026
May 24, 2021
N/A· v4
4.2 MEDIUM· v3
4.3 MEDIUM· v2
Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure)...Show more
Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.Show less
1Bluetooth
1Mesh Profile
Jun 17, 2026
May 24, 2021
N/A· v4
7.5 HIGH· v3
2.9 LOW· v2
Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device (without possession of the AuthValue used in the provisioning protocol) to determine the AuthValue via a brute-force attack (unless...Show more
Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a nearby device (without possession of the AuthValue used in the provisioning protocol) to determine the AuthValue via a brute-force attack (unless the AuthValue is sufficiently random and changed each time).Show less
1Linux
1Linux Kernel
Nov 20, 2024
May 18, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
TCP firewalls could be circumvented by sending a SYN Packets with other flags (like e.g. RST flag) set, which was not correctly discarded by the Linux TCP stack after firewalling.
1Belden
2Hirschmann Hios
Hisecos
Jun 17, 2026
May 17, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Hirschmann HiOS 07.1.01, 07.1.02, and 08.1.00 through 08.5.xx and HiSecOS 03.3.00 through 03.5.01 allow remote attackers to change the credentials of existing users.