basic/BasicAuthProvider.java in AuthGuard before 0.9.0 allows authentication via an inactive identifier.

In Drobo 5N2 4.0.5, all optional applications lack any form of authentication/authorization validation. As a result, any user capable of accessing the device over the network may interact with and control these applications. This not only poses a severe risk to the availability of these applications, but also poses severe risks to the confidentiality and integrity of data stored within the applications and the device itself.

An issue was discovered on Dasan GPON home routers. It is possible to bypass authentication simply by appending "?images" to any URL of the device that requires authentication, as demonstrated by the /menu.html?images/ or /GponForm/diag_FORM?images/ URI. One can then manage the device.

webctrl.cgi.elf on Christie Digital DWU850-GS V06.46 devices allows attackers to perform any desired action via a crafted query containing an unspecified Cookie header. Authentication bypass can be achieved by including an administrative cookie that the device does not validate.

In Apache httpd 2.2.0 to 2.4.29, when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection.

An improper authentication vulnerability has been reported to affect QNAP NAS running Kazoo Server. If exploited, this vulnerability allows attackers to compromise the security of the system. We have already fixed this vulnerability in the following versions of Kazoo Server: Kazoo Server 4.11.22 and later

An issue was discovered in WildFly 10.1.2.Final. In the case of a default installation without a security realm reference, an attacker can successfully access the server without authentication. NOTE: the Security Realms documentation in the product's Admin Guide indicates that "without a security realm reference" implies "effectively unsecured." The vendor explicitly supports these unsecured configurations because they have valid use cases during development

The Email Verification, Email OTP, Block Spam Email, Passwordless login, Hide Login, Magic Login – User Verification plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 2.0.39. This is due to the plugin not properly validating that an OTP was generated before comparing it to user input in the "user_verification_form_wrap_process_otpLogin" function. This makes it possible for unauthenticated attackers to log in as any user with a verified email address, such as an administrator, by submitting an empty OTP value.

Netgear RAX30 (AX2400), prior to version 1.0.6.74, was affected by an authentication bypass vulnerability, allowing an unauthenticated attacker to gain administrative access to the device's web management interface by resetting the admin password.