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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 (33256)

EPSS 1% CVSS 9.8
CRITICAL Act Now

Citrix XenServer 7.0 before Hotfix XS70E003, when a deployment has been upgraded from an earlier release, might allow remote attackers on the management network to "compromise" a host by leveraging. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Citrix Authentication Bypass Xenserver
NVD
EPSS 2% CVSS 5.3
MEDIUM This Month

The socket_create function in common/socket.c in libimobiledevice and libusbmuxd allows remote attackers to bypass intended access restrictions and communicate with services on iOS devices by. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Authentication Bypass Libimobiledevice +4
NVD GitHub
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.

Authentication Bypass Openstack Identity
NVD
EPSS 73% 5.2 CVSS 7.5
HIGH POC PATCH THREAT Act Now

The RPC API in the RSCD agent in BMC BladeLogic Server Automation (BSA) 8.2.x, 8.3.x, 8.5.x, 8.6.x, and 8.7.x on Linux and UNIX allows remote attackers to bypass authorization and reset arbitrary. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 73.0%.

Authentication Bypass Bladelogic Server Automation Console
NVD Exploit-DB
EPSS 71% 5.1 CVSS 7.5
HIGH POC PATCH THREAT Act Now

The RPC API in RSCD agent in BMC BladeLogic Server Automation (BSA) 8.2.x, 8.3.x, 8.5.x, 8.6.x, and 8.7.x on Linux and UNIX allows remote attackers to bypass authorization and enumerate users by. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 71.3%.

Authentication Bypass Bladelogic Server Automation Console
NVD Exploit-DB
EPSS 0% CVSS 6.5
MEDIUM This Month

Mozilla Firefox before 47.0 allows remote attackers to spoof permission notifications via a crafted web site that rapidly triggers permission requests, as demonstrated by the microphone permission or. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Mozilla Authentication Bypass Ubuntu Linux +3
NVD
EPSS 1% CVSS 6.5
MEDIUM This Month

Mozilla Firefox before 47.0 allows remote attackers to bypass the Same Origin Policy and modify the location.host property via an invalid data: URL. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Mozilla Authentication Bypass Ubuntu Linux +3
NVD
EPSS 1% CVSS 6.5
MEDIUM This Month

Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 allow remote attackers to spoof the address bar via a SELECT element with a persistent menu. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Mozilla Authentication Bypass Debian Linux +4
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

Apache CloudStack 4.5.x before 4.5.2.1, 4.6.x before 4.6.2.1, 4.7.x before 4.7.1.1, and 4.8.x before 4.8.0.1, when SAML-based authentication is enabled and used, allow remote attackers to bypass. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Authentication Bypass Apache Cloudstack
NVD
EPSS 0% CVSS 9.8
CRITICAL PATCH Act Now

Puppet Server before 2.3.2 and Ruby puppetmaster in Puppet 4.x before 4.4.2 and in Puppet Agent before 1.4.2 might allow remote attackers to bypass intended auth.conf access restrictions by. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Puppet Puppet Server +1
NVD GitHub
EPSS 0% CVSS 3.3
LOW Monitor

ABB PCM600 before 2.7 improperly stores PCM600 authentication credentials, which allows local users to obtain sensitive information via unspecified vectors. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.

Abb Authentication Bypass Pcm600
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

ABB PCM600 before 2.7 improperly stores OPC Server IEC61850 passwords in unspecified temporary circumstances, which allows local users to obtain sensitive information via unknown vectors. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity. No vendor patch available.

Abb Authentication Bypass Pcm600
NVD
EPSS 0% CVSS 5.3
MEDIUM This Month

KMC Controls BAC-5051E devices with firmware before E0.2.0.2 allow remote attackers to bypass intended access restrictions and read a configuration file via unspecified vectors. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Bac 5051E Firmware
NVD
EPSS 8% CVSS 9.8
CRITICAL Act Now

EMC NetWorker 8.2.1.x and 8.2.2.x before 8.2.2.6 and 9.x before 9.0.0.6 mishandles authentication, which allows remote attackers to execute arbitrary commands by leveraging access to a different. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Networker
NVD
EPSS 0% CVSS 7.1
HIGH This Week

SPICE allows local guest OS users to read from or write to arbitrary host memory locations via crafted primary surface parameters, a similar issue to CVE-2015-5261. Rated high severity (CVSS 7.1), this vulnerability is low attack complexity. No vendor patch available.

Authentication Bypass Enterprise Linux Enterprise Linux Desktop +9
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

LXD before 2.0.2 uses world-readable permissions for /var/lib/lxd/zfs.img when setting up a loop based ZFS pool, which allows local users to copy and read data from arbitrary containers via. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.

Authentication Bypass Ubuntu Linux Lxd
NVD
EPSS 1% CVSS 9.1
CRITICAL Act Now

The WAP interface in Trihedral VTScada (formerly VTS) 8.x through 11.x before 11.2.02 allows remote attackers to bypass authentication and read arbitrary files via unspecified vectors. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

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

General Electric (GE) Multilink ML800, ML1200, ML1600, and ML2400 switches with firmware before 5.5.0 and ML810, ML3000, and ML3100 switches with firmware before 5.5.0k have hardcoded credentials,. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Multilink Firmware
NVD
EPSS 0% CVSS 7.1
HIGH This Week

Red Hat OpenShift Enterprise 3.2, when multi-tenant SDN is enabled and a build is run in a namespace that would normally be isolated from pods in other namespaces, allows remote authenticated users. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Red Hat Authentication Bypass Openshift
NVD
EPSS 0% CVSS 5.3
MEDIUM This Month

Red Hat OpenShift Enterprise 3.2 and 3.1 do not properly validate the origin of a request when anonymous access is granted to a service/proxy or pod/proxy API for a specific pod, which allows remote. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable. No vendor patch available.

Red Hat Authentication Bypass Openshift
NVD
EPSS 0% CVSS 8.8
HIGH This Week

HPE Discovery and Dependency Mapping Inventory (DDMi) 9.30, 9.31, 9.32, 9.32 update 1, 9.32 update 2, and 9.32 update 3 allows remote authenticated users to execute arbitrary commands via a crafted. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Apache Java Authentication Bypass +1
NVD
EPSS 0% CVSS 4.7
MEDIUM This Month

The libxl device-handling in Xen through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the. Rated medium severity (CVSS 4.7). No vendor patch available.

Denial Of Service Authentication Bypass Xen
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

The Red Hat gluster-swift package, as used in Red Hat Gluster Storage (formerly Red Hat Storage Server), allows remote authenticated users to bypass the max_meta_count constraint via multiple crafted. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Red Hat Authentication Bypass Gluster Storage Management Console +2
NVD
EPSS 1% CVSS 6.5
MEDIUM This Month

WebKit/Source/devtools/front_end/devtools.js in the Developer Tools (aka DevTools) subsystem in Blink, as used in Google Chrome before 51.0.2704.79, does not ensure that the remoteFrontendUrl. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Google Authentication Bypass +9
NVD
EPSS 2% CVSS 8.8
HIGH This Week

The FrameLoader::startLoad function in WebKit/Source/core/loader/FrameLoader.cpp in Blink, as used in Google Chrome before 51.0.2704.79, does not prevent frame navigations during DocumentLoader. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Google Authentication Bypass +9
NVD
EPSS 1% CVSS 8.8
HIGH This Week

The extensions subsystem in Google Chrome before 51.0.2704.79 does not properly restrict bindings access, which allows remote attackers to bypass the Same Origin Policy via unspecified vectors. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Authentication Bypass Chrome +7
NVD
EPSS 1% CVSS 5.3
MEDIUM This Month

browser/browsing_data/browsing_data_remover.cc in Google Chrome before 51.0.2704.63 deletes HPKP pins during cache clearing, which makes it easier for remote attackers to spoof web sites via a valid. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Google Authentication Bypass Chrome +7
NVD
EPSS 1% CVSS 5.3
MEDIUM This Month

browser/safe_browsing/srt_field_trial_win.cc in Google Chrome before 51.0.2704.63 does not use the HTTPS service on dl.google.com to obtain the Software Removal Tool, which allows remote attackers to. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Google Authentication Bypass Debian Linux +7
NVD
EPSS 1% CVSS 5.3
MEDIUM This Month

WebKit/Source/core/css/StyleSheetContents.cpp in Blink, as used in Google Chrome before 51.0.2704.63, permits cross-origin loading of CSS stylesheets by a ServiceWorker even when the stylesheet. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Google Authentication Bypass +9
NVD
EPSS 1% CVSS 6.1
MEDIUM This Month

The ServiceWorkerContainer::registerServiceWorkerImpl function in WebKit/Source/modules/serviceworkers/ServiceWorkerContainer.cpp in Blink, as used in Google Chrome before 51.0.2704.63, allows remote. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Google Authentication Bypass +9
NVD
EPSS 1% CVSS 8.8
HIGH This Week

extensions/renderer/resources/binding.js in the extension bindings in Google Chrome before 51.0.2704.63 does not properly use prototypes, which allows remote attackers to bypass the Same Origin. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Authentication Bypass Debian Linux +7
NVD
EPSS 1% CVSS 8.8
HIGH This Week

Blink, as used in Google Chrome before 51.0.2704.63, allows remote attackers to bypass the Same Origin Policy by leveraging the mishandling of Document reattachment during destruction, related to. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Authentication Bypass Ubuntu Linux +8
NVD
EPSS 1% CVSS 8.8
HIGH This Week

The extensions subsystem in Google Chrome before 51.0.2704.63 allows remote attackers to bypass the Same Origin Policy via unspecified vectors. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Authentication Bypass Debian Linux +7
NVD
EPSS 2% CVSS 8.8
HIGH This Week

Blink, as used in Google Chrome before 51.0.2704.63, allows remote attackers to bypass the Same Origin Policy via unspecified vectors. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Authentication Bypass Chrome +8
NVD
EPSS 1% CVSS 8.8
HIGH This Week

The ModuleSystem::RequireForJsInner function in extensions/renderer/module_system.cc in the extension bindings in Google Chrome before 51.0.2704.63 mishandles properties, which allows remote. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Authentication Bypass Chrome +7
NVD
EPSS 1% CVSS 8.1
HIGH This Week

The com.ibm.CORBA.iiop.ClientDelegate class in IBM SDK, Java Technology Edition 6 before SR16 FP25 (6.0.16.25), 6 R1 before SR8 FP25 (6.1.8.25), 7 before SR9 FP40 (7.0.9.40), 7 R1 before SR3 FP40. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

IBM Java Authentication Bypass +13
NVD
EPSS 0% CVSS 7.5
HIGH This Week

Citrix Studio before 7.6.1000, Citrix XenDesktop 7.x before 7.6 LTSR Cumulative Update 1 (CU1), and Citrix XenApp 7.5 and 7.6 allow attackers to set Access Policy rules on the XenDesktop Delivery. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Citrix Authentication Bypass Xenapp +1
NVD
EPSS 0% CVSS 9.1
CRITICAL PATCH Act Now

The AMQP 0-8, 0-9, 0-91, and 0-10 connection handling in Apache Qpid Java before 6.0.3 might allow remote attackers to bypass authentication and consequently perform actions via vectors related to. Rated critical severity (CVSS 9.1), 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.

Apache Java Authentication Bypass +1
NVD
EPSS 0% CVSS 7.5
HIGH This Week

Environmental Systems Corporation (ESC) 8832 Data Controller 3.02 and earlier allows remote attackers to bypass intended access restrictions and execute arbitrary functions via a modified parameter. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Esc 8832 Data Controller
NVD
EPSS 0% CVSS 9.1
CRITICAL Act Now

Environmental Systems Corporation (ESC) 8832 Data Controller 3.02 and earlier mishandles sessions, which allows remote attackers to bypass authentication and make arbitrary configuration changes via. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Esc 8832 Data Controller
NVD
EPSS 1% CVSS 7.5
HIGH This Week

Moxa MiiNePort_E1_4641 devices with firmware 1.1.10 Build 09120714, MiiNePort_E1_7080 devices with firmware 1.1.10 Build 09120714, MiiNePort_E2_1242 devices with firmware 1.1 Build 10080614,. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Miineport E2 1242 Firmware Miineport E1 7080 Firmware +3
NVD
EPSS 3% CVSS 9.8
CRITICAL PATCH Act Now

The server in HP Release Control 9.13, 9.20, and 9.21 allows remote attackers to execute arbitrary commands via a crafted serialized Java object, related to the Apache Commons Collections library. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Apache HP Java +2
NVD
EPSS 0% CVSS 8.8
HIGH This Week

The API web interface in Cisco Prime Infrastructure before 3.1 and Cisco Evolved Programmable Network Manager before 1.2.4 allows remote authenticated users to bypass intended RBAC restrictions and. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Cisco Authentication Bypass Evolved Programmable Network Manager +1
NVD
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

The save_submission function in mod/assign/externallib.php in Moodle through 2.6.11, 2.7.x before 2.7.13, 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3 allows remote authenticated. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.

PHP Authentication Bypass Moodle
NVD
EPSS 2% CVSS 8.8
HIGH This Week

Eval injection vulnerability in tftp_api.rb in the TFTP module in the Smart-Proxy in Foreman before 1.10.4 and 1.11.x before 1.11.2 allows remote attackers to execute arbitrary code via the PXE. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RCE Authentication Bypass Foreman
NVD GitHub
EPSS 0% CVSS 5.4
MEDIUM This Month

Foreman before 1.10.3 and 1.11.0 before 1.11.0-RC2 allow remote authenticated users to read, modify, or delete private bookmarks by leveraging the (1) edit_bookmarks or (2) destroy_bookmarks. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Foreman
NVD
EPSS 1% CVSS 5.3
MEDIUM This Month

The Messages component in Apple OS X before 10.11.5 mishandles roster changes, which allows remote attackers to modify contact lists via unspecified vectors. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Authentication Bypass Mac Os X
NVD
EPSS 1% CVSS 7.5
HIGH This Week

MapKit in Apple iOS before 9.3.2, OS X before 10.11.5, and watchOS before 2.2.1 does not use HTTPS for shared links, which allows remote attackers to obtain sensitive information by sniffing the. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Authentication Bypass Iphone Os +2
NVD
EPSS 0% CVSS 7.8
HIGH This Week

Crash Reporter in Apple OS X before 10.11.5 allows attackers to execute arbitrary code in a privileged context via a crafted app. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Apple RCE Authentication Bypass +1
NVD
EPSS 0% CVSS 7.8
HIGH This Week

CoreStorage in Apple OS X before 10.11.5 allows attackers to execute arbitrary code in a privileged context via a crafted app. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Apple RCE Authentication Bypass +1
NVD
EPSS 0% CVSS 7.8
HIGH This Week

Apple Type Services (ATS) in Apple OS X before 10.11.5 allows attackers to bypass intended FontValidator sandbox-policy restrictions and execute arbitrary code in a privileged context via a crafted. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Apple RCE Authentication Bypass +1
NVD
EPSS 0% CVSS 4.9
MEDIUM This Month

The File Browser View in Apache Ambari before 2.2.1 allows remote authenticated administrators to read arbitrary files via a file: URL in the WebHDFS URL configuration. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Apache Authentication Bypass Ambari
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

The Auto-Scaling agent in Liberty for Java in IBM Bluemix before 2.7-20160321-1358 allows remote authenticated users to disable X.509 certificate validation, and consequently bypass an intended HTTPS. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

IBM Java Authentication Bypass +1
NVD
EPSS 1% CVSS 5.9
MEDIUM This Month

ext/mysqlnd/mysqlnd.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 uses a client SSL option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

PHP Authentication Bypass
NVD
EPSS 1% CVSS 6.5
MEDIUM This Month

PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 does not ensure that pathnames lack %00 sequences, which might allow remote attackers to read or write to arbitrary files via crafted. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

PHP Authentication Bypass Enterprise Linux Desktop +6
NVD
EPSS 0% CVSS 6.5
MEDIUM POC This Month

PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 does not ensure that pathnames lack %00 sequences, which might allow remote attackers to read or write to arbitrary files via crafted. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

PHP Authentication Bypass Enterprise Linux +6
NVD
EPSS 1% CVSS 8.8
HIGH This Week

The forEachForBinding function in WebKit/Source/bindings/core/v8/Iterable.h in the V8 bindings in Blink, as used in Google Chrome before 50.0.2661.102, uses an improper creation context, which allows. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Google Authentication Bypass +3
NVD
EPSS 1% CVSS 8.8
HIGH This Week

The TreeScope::adoptIfNeeded function in WebKit/Source/core/dom/TreeScope.cpp in the DOM implementation in Blink, as used in Google Chrome before 50.0.2661.102, does not prevent script execution. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Google Authentication Bypass +3
NVD
EPSS 0% CVSS 9.8
CRITICAL Act Now

Lantronix xPrintServer devices with firmware before 5.0.1-65 have hardcoded credentials, which allows remote attackers to obtain root access via unspecified vectors. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

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

Base-VxFS-50 B.05.00.01 through B.05.00.02, Base-VxFS-501 B.05.01.0 through B.05.01.03, and Base-VxFS-51 B.05.10.00 through B.05.10.02 on HPE HP-UX 11iv3 with VxFS 5.0, VxFS 5.0.1, and VxFS 5.1SP1. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

HP Authentication Bypass Base Vxfs 50 +2
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

The newEntry function in ptserver/ptprocs.c in OpenAFS before 1.6.17 allows remote authenticated users from foreign Kerberos realms to bypass intended access restrictions and create arbitrary groups. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Openafs Debian Linux
NVD
EPSS 17% 6.0 CVSS 10.0
CRITICAL POC KEV THREAT Emergency

Remote unauthenticated code execution in SAP NetWeaver Application Server Java (pre-7.3) through the Invoker Servlet allows attackers to bypass authentication and execute arbitrary code. Confirmed actively exploited (CISA KEV) from 2013 through 2016 in 'Detour' attacks targeting SAP business applications. CVSS 10.0 with EPSS 16.90% (95th percentile) indicates both maximum theoretical severity and sustained real-world exploitation. This remains a critical priority for organizations running legacy SAP NetWeaver Java instances despite the vulnerability's age.

Java SAP Authentication Bypass +1
NVD VulDB
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Adobe Reader and Acrobat before 11.0.16, Acrobat and Acrobat Reader DC Classic before 15.006.30172, and Acrobat and Acrobat Reader DC Continuous before 15.016.20039 on Windows and OS X allow. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Microsoft Adobe Authentication Bypass +4
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Adobe Reader and Acrobat before 11.0.16, Acrobat and Acrobat Reader DC Classic before 15.006.30172, and Acrobat and Acrobat Reader DC Continuous before 15.016.20039 on Windows and OS X allow. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Microsoft Adobe Authentication Bypass +4
NVD
EPSS 5% CVSS 10.0
CRITICAL PATCH Act Now

Adobe Reader and Acrobat before 11.0.16, Acrobat and Acrobat Reader DC Classic before 15.006.30172, and Acrobat and Acrobat Reader DC Continuous before 15.016.20039 on Windows and OS X allow. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Microsoft Adobe Authentication Bypass +4
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Adobe Reader and Acrobat before 11.0.16, Acrobat and Acrobat Reader DC Classic before 15.006.30172, and Acrobat and Acrobat Reader DC Continuous before 15.016.20039 on Windows and OS X allow. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Microsoft Adobe Authentication Bypass +4
NVD
EPSS 1% CVSS 10.0
CRITICAL PATCH Act Now

Adobe Reader and Acrobat before 11.0.16, Acrobat and Acrobat Reader DC Classic before 15.006.30172, and Acrobat and Acrobat Reader DC Continuous before 15.016.20039 on Windows and OS X allow. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Microsoft Adobe Authentication Bypass +4
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Adobe Reader and Acrobat before 11.0.16, Acrobat and Acrobat Reader DC Classic before 15.006.30172, and Acrobat and Acrobat Reader DC Continuous before 15.016.20039 on Windows and OS X allow. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Microsoft Adobe Authentication Bypass +4
NVD
EPSS 1% CVSS 9.8
CRITICAL PATCH Act Now

Adobe Reader and Acrobat before 11.0.16, Acrobat and Acrobat Reader DC Classic before 15.006.30172, and Acrobat and Acrobat Reader DC Continuous before 15.016.20039 on Windows and OS X allow. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Microsoft Adobe Authentication Bypass +4
NVD
EPSS 5% CVSS 10.0
CRITICAL PATCH Act Now

Adobe Reader and Acrobat before 11.0.16, Acrobat and Acrobat Reader DC Classic before 15.006.30172, and Acrobat and Acrobat Reader DC Continuous before 15.016.20039 on Windows and OS X allow. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Microsoft Adobe Authentication Bypass +4
NVD
EPSS 33% CVSS 8.8
HIGH Act Now

The User Mode Code Integrity (UMCI) implementation in Device Guard in Microsoft Internet Explorer 11 allows remote attackers to bypass a code-signing protection mechanism via unspecified vectors, aka. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 32.7% and no vendor patch available.

Microsoft Authentication Bypass Internet Explorer
NVD
EPSS 40% CVSS 8.8
HIGH Act Now

The Windows font library in Microsoft Office 2010 SP2, Word 2010 SP2, Word Automation Services on SharePoint Server 2010 SP2, and Office Web Apps 2010 SP2 allows remote attackers to execute arbitrary. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 40.4% and no vendor patch available.

Microsoft RCE Authentication Bypass +4
NVD
EPSS 43% CVSS 7.8
HIGH Act Now

Windows Journal in Microsoft Windows Vista SP2, Windows 7 SP1, Windows 8.1, Windows RT 8.1, and Windows 10 Gold and 1511 allows remote attackers to execute arbitrary code via a crafted Journal (aka. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Epss exploitation probability 42.9% and no vendor patch available.

Microsoft RCE Buffer Overflow +6
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

Microsoft Windows 10 Gold and 1511 allows local users to bypass the Virtual Secure Mode Hypervisor Code Integrity (HVCI) protection mechanism and perform RWX markings of kernel-mode pages via a. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. No vendor patch available.

Authentication Bypass Microsoft Windows 10
NVD
EPSS 19% CVSS 7.8
HIGH Act Now

Windows Shell in Microsoft Windows 8.1, Windows Server 2012 R2, Windows RT 8.1, and Windows 10 Gold and 1511 allows remote attackers to execute arbitrary code via a crafted web site, aka "Windows. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Epss exploitation probability 19.2% and no vendor patch available.

Microsoft RCE Authentication Bypass +4
NVD
EPSS 80% 5.7 CVSS 8.8
HIGH POC THREAT Act Now

GDI in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 allows remote. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 79.9%.

Microsoft RCE Authentication Bypass +7
NVD Exploit-DB
EPSS 69% CVSS 8.6
HIGH PATCH Act Now

mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended same-origin restrictions and possibly conduct cache-poisoning attacks via a crafted HTTP Host header, aka a "header. Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 68.9%.

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

The convert extension in Mercurial before 3.8 might allow context-dependent attackers to execute arbitrary code via a crafted git repository name. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RCE Authentication Bypass Debian Linux +1
NVD
EPSS 0% CVSS 5.3
MEDIUM This Month

Apache Cordova iOS before 4.0.0 might allow attackers to bypass a URL whitelist protection mechanism in an app and load arbitrary resources by leveraging unspecified methods. Rated medium severity (CVSS 5.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Apple Apache +1
NVD
EPSS 0% CVSS 7.8
HIGH This Week

The WLAN (aka Wi-Fi) driver for the Linux kernel 3.x and 4.x, as used in Qualcomm Innovation Center (QuIC) Android contributions for MSM devices and other products, does not verify authorization for. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Qualcomm Google Linux +2
NVD
EPSS 2% CVSS 9.8
CRITICAL Act Now

The management-services protocol implementation in Veritas NetBackup 7.x through 7.5.0.7, 7.6.0.x through 7.6.0.4, 7.6.1.x through 7.6.1.2, and 7.7.x before 7.7.2 and NetBackup Appliance through. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Netbackup Appliance Netbackup
NVD
EPSS 3% CVSS 9.8
CRITICAL Act Now

bpcd in Veritas NetBackup 7.x through 7.5.0.7, 7.6.0.x through 7.6.0.4, 7.6.1.x through 7.6.1.2, and 7.7.x before 7.7.2 and NetBackup Appliance through 2.5.4, 2.6.0.x through 2.6.0.4, 2.6.1.x through. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Netbackup Appliance Netbackup
NVD
EPSS 0% CVSS 8.1
HIGH PATCH This Week

HPE Network Node Manager i (NNMi) 9.20, 9.23, 9.24, 9.25, 10.00, and 10.01 allows remote authenticated users to modify data or cause a denial of service via unspecified vectors. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity.

Denial Of Service Authentication Bypass Network Node Manager I
NVD
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

HPE Network Node Manager i (NNMi) 9.20, 9.23, 9.24, 9.25, 10.00, and 10.01 allows remote attackers to bypass authentication via unspecified vectors. Rated medium severity (CVSS 6.5), 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 Network Node Manager I
NVD
EPSS 1% CVSS 8.8
HIGH PATCH This Week

HPE Network Node Manager i (NNMi) 9.20, 9.23, 9.24, 9.25, 10.00, and 10.01 allows remote authenticated users to execute arbitrary commands via a crafted serialized Java object, related to the Apache. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity.

Apache Java Authentication Bypass +1
NVD
EPSS 0% CVSS 9.8
CRITICAL Act Now

The pam_sm_authenticate function in pam_sshauth.c in libpam-sshauth might allow context-dependent attackers to bypass authentication or gain privileges via a system user account. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Libpam Sshauth Debian Linux
NVD
EPSS 1% CVSS 9.8
CRITICAL Act Now

The XML API in TelePresence Codec (TC) 7.2.0, 7.2.1, 7.3.0, 7.3.1, 7.3.2, 7.3.3, 7.3.4, and 7.3.5 and Collaboration Endpoint (CE) 8.0.0, 8.0.1, and 8.1.0 in Cisco TelePresence Software mishandles. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cisco Authentication Bypass Telepresence Tc Software
NVD
EPSS 1% CVSS 6.8
MEDIUM This Month

The canonicalize_username function in svnserve/cyrus_auth.c in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4, when Cyrus SASL authentication is used, allows remote attackers to authenticate. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. No vendor patch available.

Apache Authentication Bypass Subversion
NVD
EPSS 0% CVSS 6.3
MEDIUM This Month

EMC RSA Data Loss Prevention 9.6 before SP2 P5 allows remote authenticated users to bypass intended object access restrictions via a modified parameter. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Rsa Data Loss Prevention
NVD
EPSS 0% CVSS 6.1
MEDIUM PATCH This Month

fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access. Rated medium severity (CVSS 6.1), this vulnerability is low attack complexity.

Linux Authentication Bypass Linux Kernel
NVD GitHub
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Quick Facts

Typical Severity
CRITICAL
Category
auth
Total CVEs
33256

MITRE ATT&CK

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