CWE-603 Use of Client-Side Authentication

base

A client/server product performs authentication within client code but not in server code, allowing server-side authentication to be bypassed via a modified client that omits the authentication check.

01

parent weaknesses

Broader classes this is a kind of.

02

vulnerabilities (30)

Known CVEs related to this entry.

IDseverity exploitable
CVE-2022-3218UScritical9.8Exploit
Due to a reliance on client-side authentication, the WiFi Mouse (Mouse Server) from Necta LLC's authentication mechanism is trivially bypassed, which can result in remote code exec…
CVE-2025-62650UScritical9.9—
The Restaurant Brands International (RBI) assistant platform through 2025-09-06 relies on client-side authentication for use of the diagnostic screen.
CVE-2017-7909UScritical9.8—
A Use of Client-Side Authentication issue was discovered in Advantech B+B SmartWorx MESR901 firmware versions 1.5.2 and prior. The web interface uses JavaScript to check client aut…
CVE-2016-2275UScritical9.8—
The web interface on Advantech/B+B SmartWorx VESP211-EU devices with firmware 1.7.2 and VESP211-232 devices with firmware 1.5.1 and 1.7.2 relies on the client to implement access c…
CVE-2024-39375UScritical9.8—
TELSAT marKoni FM Transmitters are vulnerable to an attacker bypassing authentication and gaining administrator privileges.
CVE-2022-33139UScritical9.8—
A vulnerability has been identified in Cerberus DMS (All versions), Desigo CC (All versions), Desigo CC Compact (All versions), SIMATIC WinCC OA V3.16 (All versions in default conf…
CVE-2021-43355UScritical9.8—
Fresenius Kabi Vigilant Software Suite (Mastermed Dashboard) version 2.0.1.3 allows user input to be validated on the client side without authentication by the server. The server s…
CVE-2020-7591UShigh8.8—
A vulnerability has been identified in SIPORT MP (All versions < 3.2.1). Vulnerable versions of the device could allow an authenticated attacker to impersonate other users of the s…
CVE-2025-61940UShigh8.8—
NMIS/BioDose V22.02 and previous versions rely on a common SQL Server user account to access data in the database. User access in the client application is restricted by a password…
CVE-2026-90983UShigh8.2—
Use of Client-Side authentication vulnerability in Hayat Health Facilities Inc. (Hayat Hospital) Hayat Mobile allows Authentication Bypass. This issue affects Hayat Mobile: from 3…
CVE-2025-30042UShigh7.8—
The CGM CLININET system provides smart card authentication; however, authentication is conducted locally on the client device, and, in reality, only the certificate number is used…
CVE-2020-6988UShigh7.5—
Rockwell Automation MicroLogix 1400 Controllers Series B v21.001 and prior, Series A, all versions, MicroLogix 1100 Controller, all versions, RSLogix 500 Software v12.001 and prior…
CVE-2024-45785UShigh7.5—
MUSASI version 3 contains an issue with use of client-side authentication. If this vulnerability is exploited, other users' credential and sensitive information may be retrieved.
CVE-2026-66305UShigh7.1—
Use of client-side authentication in Skype for Business allows an authorized attacker to perform spoofing over a network.
CVE-2020-27266USmedium6.5—
In SOOIL Developments Co., Ltd Diabecare RS, AnyDana-i and AnyDana-A, a client-side control vulnerability in the insulin pump and its AnyDana-i and AnyDana-A mobile applications al…
CVE-2025-62649USmedium5.8—
The Restaurant Brands International (RBI) assistant platform through 2025-09-06 relies on client-side authentication for submission of equipment orders.
CVE-2026-3096US——
The product's web portals allow external links to be opened in a new browser tab. In certain configurations, the originating window retains access to the newly opened page, allowin…
CVE-2026-76945US——
The affected Ebyte device relies on client-managed authentication tokens without sufficient server-side validation. An attacker may replay or manipulate authentication tokens to…
CVE-2026-71187US——
The Ebyte device relies on client side authentication logic that can be reproduced by unauthenticated users. An attacker may generate valid authentication requests and bypass aut…
CVE-2026-42098US——
Sparx Enterprise Architect software has a security feature that limits user's actions to those specified in the role. An authenticated attacker can modify the Enterprise Architect…
03

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