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Authentication Bypass

auth CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

How It Works

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications. Instead of cracking passwords through brute force, attackers manipulate the authentication process itself to gain unauthorized entry. This typically occurs through one of several pathways: exploiting hardcoded credentials embedded in source code or configuration files, manipulating parameters in authentication requests to skip verification steps, or leveraging broken session management that fails to properly validate user identity.

The attack flow often begins with reconnaissance to identify authentication endpoints and their underlying logic. Attackers may probe for default administrative credentials that were never changed, test whether certain URL paths bypass login requirements entirely, or intercept and modify authentication tokens to escalate privileges. In multi-step authentication processes, flaws in state management can allow attackers to complete only partial verification steps while still gaining full access.

More sophisticated variants exploit single sign-on (SSO) or OAuth implementations where misconfigurations in trust relationships allow attackers to forge authentication assertions. Parameter tampering—such as changing a "role=user" field to "role=admin" in a request—can trick poorly designed systems into granting elevated access without proper verification.

Impact

  • Complete account takeover — attackers gain full control of user accounts, including administrative accounts, without knowing legitimate credentials
  • Unauthorized data access — ability to view, modify, or exfiltrate sensitive information including customer data, financial records, and intellectual property
  • System-wide compromise — admin-level access enables installation of backdoors, modification of security controls, and complete infrastructure takeover
  • Lateral movement — bypassed authentication provides a foothold for moving deeper into networks and accessing additional systems
  • Compliance violations — unauthorized access triggers breach notification requirements and regulatory penalties

Real-World Examples

CrushFTP suffered a critical authentication bypass allowing attackers to access file-sharing functionality without any credentials. The vulnerability enabled direct server-side template injection, leading to remote code execution on affected systems. Attackers actively exploited this in the wild to establish persistent access to enterprise file servers.

Palo Alto's Expedition migration tool contained a flaw permitting attackers to reset administrative credentials without authentication. This allowed complete takeover of the migration environment, potentially exposing network configurations and security policies being transferred between systems.

SolarWinds Web Help Desk (CVE-2024-28987) shipped with hardcoded internal credentials that could not be changed through normal administrative functions. Attackers discovering these credentials gained full administrative access to helpdesk systems containing sensitive organizational information and user data.

Mitigation

  • Implement multi-factor authentication (MFA) — requires attackers to compromise additional verification factors beyond bypassed primary authentication
  • Eliminate hardcoded credentials — use secure credential management systems and rotate all default credentials during deployment
  • Enforce authentication on all endpoints — verify every request requires valid authentication; no "hidden" administrative paths should exist
  • Implement proper session management — use cryptographically secure session tokens, validate on server-side, enforce timeout policies
  • Apply principle of least privilege — limit damage by ensuring even authenticated users only access necessary resources
  • Regular security testing — conduct penetration testing specifically targeting authentication logic and flows

Recent CVEs (37892)

EPSS 0% CVSS 7.8
HIGH This Week

In EMC VNX2 versions prior to OE for File 8.1.9.211 and VNX1 versions prior to OE for File 7.1.80.8, a local authenticated user may potentially escalate their privileges to root due to authorization. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Authentication Bypass Vnx2 Firmware Vnx1 Firmware +1
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

With X-Pack installed, Kibana versions 5.0.0 and 5.0.1 were not properly authenticating requests to advanced settings and the short URL service, any authenticated user could make requests to those. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Elastic Kibana
NVD
EPSS 1% CVSS 7.5
HIGH This Week

Kibana before 4.5.4 and 4.1.11 when a custom output is configured for logging in, cookies and authorization headers could be written to the log files. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Elastic Kibana
NVD
EPSS 6% CVSS 4.3
MEDIUM PATCH This Month

Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to trick a user into loading a page with malicious content when the Edge Content Security Policy (CSP) fails to properly validate. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Microsoft Edge
NVD
EPSS 1% CVSS 5.4
MEDIUM PATCH This Month

Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to trick a user into loading a page with malicious content when Microsoft Edge does not. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Microsoft Edge
NVD
EPSS 1% CVSS 4.3
MEDIUM PATCH This Month

Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to trick a user into loading a page with malicious content when Microsoft Edge fails to. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Microsoft Edge
NVD
EPSS 19% CVSS 5.5
MEDIUM PATCH This Month

A security feature bypass vulnerability exists in Microsoft Office software when it improperly handles the parsing of file formats, aka "Microsoft Office Security Feature Bypass Vulnerability". Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Epss exploitation probability 19.4%.

Authentication Bypass Microsoft Outlook
NVD
EPSS 1% CVSS 5.5
MEDIUM PATCH This Month

Microsoft Windows 8.1 and Windows RT 8.1, Windows Server 2012 R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an attacker to set variables that are either read-only or. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

Authentication Bypass Microsoft Windows Server 2012 +4
NVD
EPSS 1% CVSS 5.3
MEDIUM PATCH This Month

Microsoft Windows 10 Gold, Windows 10 1511, Windows 10 1607, and Windows Server 2016 allow an attacker to exploit a security feature bypass vulnerability in Device Guard that could allow the attacker. Rated medium severity (CVSS 5.3), this vulnerability is low attack complexity.

Authentication Bypass Microsoft Windows Server 2016 +1
NVD
EPSS 2% CVSS 5.3
MEDIUM PATCH This Month

Microsoft Windows 10 Gold, Windows 10 1511, Windows 10 1607, and Windows Server 2016 allow an attacker to exploit a security feature bypass vulnerability in Device Guard that could allow the attacker. Rated medium severity (CVSS 5.3), this vulnerability is low attack complexity.

Authentication Bypass Microsoft Windows Server 2016 +1
NVD
EPSS 1% CVSS 5.3
MEDIUM PATCH This Month

Microsoft Windows 10 1511, Windows 10 1607, and Windows Server 2016 allow an attacker to exploit a security feature bypass vulnerability in Device Guard that could allow the attacker to inject. Rated medium severity (CVSS 5.3), this vulnerability is low attack complexity.

Authentication Bypass Microsoft Windows Server 2016 +1
NVD
EPSS 1% CVSS 5.3
MEDIUM PATCH This Month

Microsoft Windows 10 1607 and Windows Server 2016 allow an attacker to exploit a security feature bypass vulnerability in Device Guard that could allow the attacker to inject malicious code into a. Rated medium severity (CVSS 5.3), this vulnerability is low attack complexity.

Authentication Bypass Microsoft Windows Server 2016 +1
NVD
EPSS 0% CVSS 5.3
MEDIUM This Month

EMC ESRS VE 3.18 or earlier contains Authentication Bypass that could potentially be exploited by malicious users to compromise the affected system. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Information Disclosure Secure Remote Services +1
NVD
EPSS 0% CVSS 8.8
HIGH This Week

Atlassian Bamboo 5.x before 5.15.7 and 6.x before 6.0.1 did not correctly check if a user creating a deployment project had the edit permission and therefore the rights to do so. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass RCE Atlassian +1
NVD
EPSS 0% CVSS 5.9
MEDIUM PATCH This Month

In environments that use external location for hive tables, Hive Authorizer in Apache Ranger before 0.7.1 should be checking RWX permission for create table. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. This Missing Authorization vulnerability could allow attackers to access resources or perform actions without proper authorization checks.

Authentication Bypass Apache Ranger
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

In all Android releases from CAF using the Linux kernel, libtomcrypt was updated. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

In all Android releases from CAF using the Linux kernel, a dynamically-protected DDR region could potentially get overwritten. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

In all Android releases from CAF using the Linux kernel, a sensitive system call was allowed to be called by HLOS. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 7.8
HIGH This Week

In all Android releases from CAF using the Linux kernel, the Hypervisor API could be misused to bypass authentication. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 7.8
HIGH This Week

In all Android releases from CAF using the Linux kernel, a vulnerability exists in the access control settings of modem memory. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

In all Android releases from CAF using the Linux kernel, some interfaces were improperly exposed to QTEE applications. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

In all Android releases from CAF using the Linux kernel, access control to SMEM memory was not enabled. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 7.8
HIGH This Week

In all Android releases from CAF using the Linux kernel, a vulnerability in eMMC write protection exists that can be used to bypass power-on write protection. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Linux Google +1
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Pulp before 2.8.5 uses bash's $RANDOM in an unsafe way to generate passwords. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Fedora Pulp +2
NVD GitHub
EPSS 0% CVSS 9.8
CRITICAL Act Now

/var/lib/ovirt-engine/setup/engine-DC-config.py in Red Hat QuickStart Cloud Installer (QCI) before 1.0 GA is created world readable and contains the root password of the deployed system. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Red Hat Quickstart Cloud Installer
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

A vulnerability in the ConfD server component of Cisco Elastic Services Controllers could allow an authenticated, local attacker to access information stored in the file system of an affected system,. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.

Authentication Bypass Cisco Elastic +1
NVD
EPSS 0% CVSS 7.5
HIGH This Week

A vulnerability in the feature-license management functionality of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass URL filters that have been configured for. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Cisco Firesight System
NVD
EPSS 0% CVSS 7.5
HIGH This Week

A vulnerability in the email message scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured filters on the. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Cisco Email Security Appliance Firmware
NVD
EPSS 2% CVSS 9.8
CRITICAL Act Now

D-Link DIR-615 Wireless N 300 Router allows authentication bypass via a modified POST request to login.cgi. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass D-Link Dir 615 Firmware +1
NVD
EPSS 1% CVSS 7.5
HIGH This Week

Cybozu Dezie 8.0.0 to 8.1.1 allows remote attackers to bypass access restrictions to delete an arbitrary DBM (Cybozu Dezie proprietary format) file via unspecified vectors. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Dezie Cybozu
NVD
EPSS 0% CVSS 8.8
HIGH This Week

Sony PCS-XG100, PCS-XG100S, PCS-XG100C, PCS-XG77, PCS-XG77S, PCS-XG77C devices with firmware versions prior to Ver.1.51 and PCS-XC1 devices with firmware version prior to Ver.1.22 allow an attacker. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Pcs Xg100 Firmware Pcs Xg77 Firmware +2
NVD
EPSS 1% CVSS 8.8
HIGH This Week

Buffalo NC01WH devices with firmware version 1.0.0.8 and earlier allows authenticated attackers to bypass access restriction to enable the debug option via unspecified vectors. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Wnc01Wh Firmware Buffalotech
NVD
EPSS 0% CVSS 8.8
HIGH This Week

Corega CG-WLR300NX firmware Ver. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Cg Wlr300Nx Firmware Corega
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

I-O DATA DEVICE WFS-SR01 firmware version 1.10 and earlier allow remote attackers to bypass access restriction to access data on storage devices inserted into the product via unspecified vectors. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Wfs Sr01 Firmware Iodata
NVD
EPSS 0% CVSS 4.3
MEDIUM This Month

Cybozu Garoon 3.0.0 to 4.2.2 allows remote attackers to bypass access restrictions to delete other users' To-Dos via unspecified vectors. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Garoon Cybozu
NVD
EPSS 0% CVSS 4.3
MEDIUM This Month

Cybozu Garoon 3.0.0 to 4.2.2 allows remote authenticated attackers to bypass access restriction to delete other operational administrators' MultiReport filters via unspecified vectors. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Garoon Cybozu
NVD
EPSS 0% CVSS 4.3
MEDIUM This Month

Cybozu Garoon 3.0.0 to 4.2.2 allows remote authenticated attackers to bypass access restriction to alter or delete another user's private RSS settings via unspecified vectors. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Garoon Cybozu
NVD
EPSS 0% CVSS 8.1
HIGH PATCH This Week

IBM Tivoli Key Lifecycle Manager 2.0.1, 2.5, and 2.6 specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity.

Authentication Bypass IBM Security Key Lifecycle Manager +1
NVD
EPSS 0% CVSS 9.8
CRITICAL PATCH Act Now

IBM Tivoli Key Lifecycle Manager does not require that users should have strong passwords by default, which makes it easier for attackers to compromise user accounts. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass IBM Security Key Lifecycle Manager +1
NVD
EPSS 1% CVSS 10.0
CRITICAL POC PATCH Act Now

AdBlock before 2.21 allows remote attackers to block arbitrary resources on arbitrary websites and to disable arbitrary blocking filters. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Authentication Bypass Adblock
NVD GitHub
EPSS 1% CVSS 7.5
HIGH This Week

Blue Coat Advanced Secure Gateway 6.6, CacheFlow 3.4, ProxySG 6.5 and 6.6 allows remote attackers to bypass blocked requests, user authentication, and payload scanning. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Proxysg Advanced Secure Gateway +2
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

client/consumer/cli.py in Pulp before 2.8.3 writes consumer private keys to etc/pki/pulp/consumer/consumer-cert.pem as world-readable, which allows remote authenticated users to obtain the consumer. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Pulp Pulpproject
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The Node certificate in Pulp before 2.8.3 contains the private key, and is stored in a world-readable file in the "/etc/pki/pulp/nodes/" directory, which allows local users to gain access to. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

Authentication Bypass Information Disclosure Pulp +1
NVD
EPSS 3% CVSS 7.5
HIGH This Week

The user authentication module in Huawei Campus switches S5700, S5300, S6300, and S6700 with software before V200R001SPH012 and S7700, S9300, and S9700 with software before V200R001SPH015 allows. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Denial Of Service Huawei +7
NVD
EPSS 1% CVSS 5.3
MEDIUM PATCH This Month

markdown-it before 4.1.0 does not block data: URLs. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Markdown It Markdown It Project
NVD GitHub
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

IBM WebSphere MQ 9.0.0.1 and 9.0.2 could allow a local user to write to a file or delete files in a directory they should not have access to due to improper access controls. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

Authentication Bypass IBM Websphere Mq
NVD
EPSS 0% CVSS 8.1
HIGH This Week

In ARM Trusted Firmware 1.3, RO memory is always executable at AArch64 Secure EL1, allowing attackers to bypass the MT_EXECUTE_NEVER protection mechanism. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Authentication Bypass Arm Trusted Firmware Arm
NVD GitHub VulDB
EPSS 9% CVSS 7.5
HIGH POC This Week

An issue was discovered in Personify360 e-Business 7.5.2 through 7.6.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Authentication Bypass Personify360 E Business
NVD Exploit-DB
EPSS 0% CVSS 7.5
HIGH This Week

PostgreSQL PL/Java after 9.0 does not honor access controls on large objects. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Java PostgreSQL
NVD
EPSS 0% CVSS 9.8
CRITICAL Act Now

The Fedora Nagios package uses "nagiosadmin" as the default password for the "nagiosadmin" administrator account, which makes it easier for remote attackers to obtain access by leveraging knowledge. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Nagios
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

MongoDB on Red Hat Satellite 6 allows local users to bypass authentication by logging in with an empty password and delete information which can cause a Denial of Service. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

Authentication Bypass Denial Of Service MongoDB +1
NVD
EPSS 0% CVSS 6.7
MEDIUM This Month

CompuLab Intense PC and MintBox 2 devices with BIOS before 2017-05-21 do not use the CloseMnf protection mechanism for write protection of flash memory regions, which allows local users to install a. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

Authentication Bypass Intense Pc Firmware Mintbox 2 Firmware
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

In Resource Power Manager (RPM) in all Android releases from CAF using the Linux kernel, an Improper Access Control vulnerability could potentially exist. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

In the Secure File System in all Android releases from CAF using the Linux kernel, a capture-replay vulnerability could potentially exist. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

In Core Kernel in all Android releases from CAF using the Linux kernel, an Improper Authorization vulnerability could potentially exist. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

In TrustZone in all Android releases from CAF using the Linux kernel, an Improper Authorization vulnerability could potentially exist. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Elastic X-Pack Security versions 5.0.0 to 5.4.0 contain a privilege escalation bug in the run_as functionality. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.

Authentication Bypass Privilege Escalation Elastic +1
NVD
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

Zulip Server 1.5.1 and below suffer from an error in the implementation of the invite_by_admins_only setting in the Zulip group chat application server that allowed an authenticated user to invite. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity.

Authentication Bypass Zulip Server Zulip
NVD GitHub
EPSS 0% CVSS 6.5
MEDIUM POC PATCH This Month

BigTree CMS through 4.2.18 does not prevent a user from deleting their own account. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Authentication Bypass Bigtree Cms Bigtreecms
NVD GitHub
EPSS 0% CVSS 5.3
MEDIUM This Month

A Use of Hard-Coded Password issue was discovered in Phoenix Broadband PowerAgent SC3 BMS, all versions prior to v6.87. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Poweragent Sc3 Bms Firmware
NVD
EPSS 0% CVSS 5.3
MEDIUM This Month

A firewall bypass vulnerability in the host based firewall of Juniper Networks Junos Space versions prior to 16.1R1 may permit certain crafted packets, representing a network integrity risk. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Juniper Junos Space
NVD
EPSS 1% CVSS 8.8
HIGH This Week

On Juniper Networks Junos Space versions prior to 16.1R1, due to an insufficient authorization check, readonly users on the Junos Space administrative web interface can execute code on the device. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Juniper Junos Space
NVD
EPSS 0% CVSS 8.8
HIGH This Week

On Juniper Networks Junos Space versions prior to 16.1R1, due to an insufficient authorization check, readonly users on the Junos Space administrative web interface can create privileged users,. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Privilege Escalation Juniper +1
NVD
EPSS 1% CVSS 9.8
CRITICAL Act Now

The TLS session cache in FreeRADIUS 2.1.1 through 2.1.7, 3.0.x before 3.0.14, 3.1.x before 2017-02-04, and 4.0.x before 2017-02-04 fails to reliably prevent resumption of an unauthenticated session,. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Freeradius
NVD
EPSS 0% CVSS 9.8
CRITICAL Act Now

An Improper Restriction of Excessive Authentication Attempts issue was discovered in Moxa OnCell G3110-HSPA Version 1.3 build 15082117 and previous versions, OnCell G3110-HSDPA Version 1.2 Build. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Oncell G3110 Hspa Firmware Oncell G3110 Hsdpa Firmware +5
NVD
EPSS 0% CVSS 6.8
MEDIUM PATCH This Month

For versions of Apache Knox from 0.2.0 to 0.11.0 - an authenticated user may use a specially crafted URL to impersonate another user while accessing WebHDFS through Apache Knox. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable.

Authentication Bypass Apache Knox
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Foreman since version 1.5 is vulnerable to an incorrect authorization check due to which users with user management permission who are assigned to some organization(s) can do all operations granted. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.

Authentication Bypass Foreman Theforeman
NVD GitHub
EPSS 0% CVSS 7.8
HIGH POC PATCH This Week

Trend Micro ServerProtect for Linux 3.0 before CP 1531 allows local users to gain privileges by leveraging an unrestricted quarantine directory. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.

Authentication Bypass Trend Micro Serverprotect
NVD
EPSS 0% CVSS 9.8
CRITICAL PATCH Act Now

When using the CAS Proxy ticket authentication from Spring Security 3.1 to 3.2.4 a malicious CAS Service could trick another CAS Service into authenticating a proxy ticket that was not associated. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

Authentication Bypass Java VMware +1
NVD
EPSS 0% CVSS 7.3
HIGH PATCH This Week

The ActiveDirectoryLdapAuthenticator in Spring Security 3.2.0 to 3.2.1 and 3.1.0 to 3.1.5 does not check the password length. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

Authentication Bypass Java VMware +1
NVD
EPSS 1% CVSS 9.8
CRITICAL Act Now

In some circumstances, an F5 BIG-IP version 12.0.0 to 12.1.2 and 13.0.0 Azure cloud instance may contain a default administrative password which could be used to remotely log into the BIG-IP system. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Microsoft Big Ip Application Security Manager +9
NVD
EPSS 1% CVSS 8.1
HIGH PATCH This Week

PgBouncer 1.6.x before 1.6.1, when configured with auth_user, allows remote attackers to gain login access as auth_user via an unknown username. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

Authentication Bypass Pgbouncer
NVD GitHub
EPSS 0% CVSS 3.5
LOW Monitor

FlashAirTM SDHC Memory Card (SD-WE Series <W-03>) V3.00.02 and earlier and FlashAirTM SDHC Memory Card (SD-WD/WC Series <W-02>) V2.00.04 and earlier allows authenticated attackers to bypass access. Rated low severity (CVSS 3.5), this vulnerability is low attack complexity. No vendor patch available.

Authentication Bypass Flashair Toshiba
NVD
EPSS 0% CVSS 4.3
MEDIUM This Month

The Toshiba FlashAir SD-WD/WC series Class 6 model with firmware version 1.00.04 and later, FlashAir SD-WD/WC series Class 10 model W-02 with firmware version 2.00.02 and later, FlashAir SD-WE series. Rated medium severity (CVSS 4.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Flashair Toshiba
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

An issue was discovered in certain Apple products. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Apple Mac Os X
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

An issue was discovered in certain Apple products. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Apple Mac Os X
NVD
EPSS 2% CVSS 5.0
MEDIUM POC This Month

An issue was discovered in certain Apple products. Rated medium severity (CVSS 5.0), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Authentication Bypass Apple Mac Os X
NVD Exploit-DB
EPSS 2% CVSS 5.5
MEDIUM POC This Month

An issue was discovered in certain Apple products. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Authentication Bypass Apple Mac Os X
NVD Exploit-DB
EPSS 0% CVSS 5.5
MEDIUM This Month

An issue was discovered in certain Apple products. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Apple Iphone Os +3
NVD
EPSS 0% CVSS 7.5
HIGH This Week

An issue was discovered in certain Apple products. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Apple Iphone Os
NVD
EPSS 0% CVSS 7.5
HIGH This Week

A hard-coded credentials issue was discovered on Mimosa Client Radios before 2.2.3, Mimosa Backhaul Radios before 2.2.3, and Mimosa Access Points before 2.2.3. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Backhaul Radios Client Radios +1
NVD
EPSS 6% CVSS 8.8
HIGH POC This Week

login.cgi on D-Link DIR-600M devices with firmware 3.04 allows remote attackers to bypass authentication by entering more than 20 blank spaces in the password field during an admin login attempt. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Authentication Bypass D-Link Dir 600M Firmware
NVD Exploit-DB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

/admin/loginc.php in Allen Disk 1.6 doesn't check if isset($_SESSION['captcha']['code']) == 1, which leads to CAPTCHA bypass by emptying $_POST['captcha']. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

PHP Authentication Bypass Allen Disk +1
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

reg.php in Allen Disk 1.6 doesn't check if isset($_SESSION['captcha']['code'])==1, which makes it possible to bypass the CAPTCHA via an empty $_POST['captcha']. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

PHP Authentication Bypass Allen Disk +1
NVD GitHub
EPSS 0% CVSS 4.0
MEDIUM This Month

An Improper Authentication issue was discovered in Phoenix Contact GmbH mGuard firmware versions 8.3.0 to 8.4.2. Rated medium severity (CVSS 4.0), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Authentication Bypass Mguard Firmware
NVD
EPSS 0% CVSS 7.3
HIGH This Week

An Improper Access Control issue was discovered in LCDS - Leao Consultoria e Desenvolvimento de Sistemas LTDA ME LAquis SCADA. Rated high severity (CVSS 7.3), this vulnerability is low attack complexity. No vendor patch available.

Authentication Bypass Ltda Me Laquis Scada
NVD
EPSS 65% 5.4 CVSS 9.8
CRITICAL POC THREAT Emergency

An Authentication Bypass issue was discovered in Geutebruck IP Camera G-Cam/EFD-2250 Version 1.11.0.12. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 65.2%.

Authentication Bypass RCE Ip Camera G Cam Efd 2250 Firmware
NVD Exploit-DB
EPSS 0% CVSS 7.8
HIGH POC PATCH This Week

KDE kdelibs before 4.14.32 and KAuth before 5.34 allow local users to gain root privileges by spoofing a callerID and leveraging a privileged helper app. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.

Authentication Bypass Kde Kdelibs +1
NVD Exploit-DB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

If shared content protection memory were passed as the secure camera memory buffer by the HLOS to a trusted application (TA) in all Android releases from CAF using the Linux kernel, the TA would not. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Authentication Bypass Linux Google +1
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

IBM QRadar 7.2 and 7.3 stores user credentials in plain in clear text which can be read by an authenticated user. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass IBM Qradar Security Information And Event Manager
NVD
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Quick Facts

Typical Severity
CRITICAL
Category
auth
Total CVEs
37892

MITRE ATT&CK

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