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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 (33257)

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
EPSS 0% CVSS 7.8
HIGH PATCH This Week

The netlink_sendmsg function in net/netlink/af_netlink.c in the Linux kernel before 3.5.5 does not validate the dst_pid field, which allows local users to have an unspecified impact by spoofing. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.

Linux Authentication Bypass Linux Kernel
NVD GitHub
EPSS 0% CVSS 4.3
MEDIUM This Month

The Firefox Health Reports (aka FHR or about:healthreport) feature in Mozilla Firefox before 46.0 does not properly restrict the origin of events, which makes it easier for remote attackers to modify. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Mozilla Authentication Bypass Firefox
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

Mozilla Firefox before 46.0 allows remote attackers to bypass the Content Security Policy (CSP) protection mechanism via the multipart/x-mixed-replace content type. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Mozilla Authentication Bypass Firefox
NVD
EPSS 0% CVSS 6.3
MEDIUM PATCH This Month

The management screen in LOCKON EC-CUBE 3.0.7 through 3.0.9 allows remote authenticated users to bypass intended access restrictions via unspecified vectors, a different vulnerability than. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, low attack complexity.

Authentication Bypass Ec Cube
NVD
EPSS 0% CVSS 7.8
HIGH POC PATCH This Week

The arch_pick_mmap_layout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.

Linux Authentication Bypass Ubuntu Linux +8
NVD GitHub Exploit-DB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

The tm_reclaim_thread function in arch/powerpc/kernel/process.c in the Linux kernel before 4.4.1 on powerpc platforms does not ensure that TM suspend mode exists before proceeding with a tm_reclaim. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity.

Denial Of Service Linux Authentication Bypass +8
NVD GitHub
EPSS 0% CVSS 9.8
CRITICAL Act Now

yast2-users before 3.1.47, as used in SUSE Linux Enterprise 12 SP1, does not properly set empty password fields in /etc/shadow during an AutoYaST installation when the profile does not contain. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Yast2
NVD
EPSS 0% CVSS 9.8
CRITICAL Act Now

The web interface on SysLINK SL-1000 Machine-to-Machine (M2M) Modular Gateway devices with firmware before 01A.8 has a default password, which makes it easier for remote attackers to obtain access. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Syslink Sl 1000 Modular Gateway Firmware
NVD
EPSS 0% CVSS 5.9
MEDIUM This Month

epan/dissectors/packet-iax2.c in the IAX2 dissector in Wireshark 1.12.x before 1.12.11 and 2.0.x before 2.0.3 uses an incorrect integer data type, which allows remote attackers to cause a denial of. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Denial Of Service Authentication Bypass Wireshark
NVD
EPSS 0% CVSS 5.9
MEDIUM This Month

epan/dissectors/packet-ncp2222.inc in the NCP dissector in Wireshark 2.0.x before 2.0.3 does not properly initialize memory for search patterns, which allows remote attackers to cause a denial of. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Denial Of Service Authentication Bypass Wireshark
NVD
EPSS 30% CVSS 7.8
HIGH POC THREAT Act Now

The management console on Symantec Messaging Gateway (SMG) Appliance devices before 10.6.1 allows local users to discover an encrypted AD password by leveraging certain read privileges. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and EPSS exploitation probability 29.6%.

Authentication Bypass Messaging Gateway
NVD Exploit-DB
EPSS 1% CVSS 7.8
HIGH This Week

Use-after-free vulnerability in the XFA forms handling functionality in Foxit Reader and PhantomPDF before 7.3.4 on Windows allows remote attackers to execute arbitrary code via a crafted remerge. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft RCE Authentication Bypass +2
NVD
EPSS 0% CVSS 8.8
HIGH This Week

The Bluetooth functionality in Lemur Vehicle Monitors BlueDriver before 2016-04-07 supports unrestricted pairing without a PIN, which allows remote attackers to send arbitrary CAN commands by. Rated high severity (CVSS 8.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Bluedriver
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

Ecava IntegraXor before 5.0 build 4522 allows remote attackers to bypass authentication and access unspecified web pages via unknown vectors. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Integraxor
NVD
EPSS 94% 6.3 CVSS 9.8
CRITICAL KEV PATCH THREAT Act Now

Unspecified vulnerability in Oracle Java SE 6u113, 7u99, and 8u77; Java SE Embedded 8u77; and JRockit R28.3.9 allows remote attackers to affect confidentiality, integrity, and availability via. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Actively exploited in the wild (cisa kev) and EPSS exploitation probability 94.0%.

Java Oracle Authentication Bypass
NVD VulDB
EPSS 93% 6.2 CVSS 9.8
CRITICAL POC THREAT Emergency

HPE Data Protector before 7.03_108, 8.x before 8.15, and 9.x before 9.06 allow remote attackers to execute arbitrary code via unspecified vectors related to lack of authentication. 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 92.7%.

RCE Authentication Bypass Data Protector
NVD Exploit-DB
EPSS 0% CVSS 7.5
HIGH This Week

The download implementation in Google Chrome before 50.0.2661.75 on Android allows remote attackers to bypass intended pathname restrictions via unspecified vectors. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Authentication Bypass Chrome +2
NVD
EPSS 0% CVSS 8.4
HIGH PATCH This Week

Race condition in Download Manager in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-04-01 allows attackers to bypass private-storage file-access restrictions. Rated high severity (CVSS 8.4), this vulnerability is no authentication required, low attack complexity.

Race Condition Google Authentication Bypass +1
NVD
EPSS 0% CVSS 7.6
HIGH This Week

Client Integration Plugin (CIP) in VMware vCenter Server 5.5 U3a, U3b, and U3c and 6.0 before U2; vCloud Director 5.5.5; and vRealize Automation Identity Appliance 6.2.4 before 6.2.4.1 mishandles. Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

VMware Authentication Bypass Vcenter Server +2
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

The virStorageVolCreateXML API in libvirt 1.2.14 through 1.2.19 allows remote authenticated users with a read-write connection to cause a denial of service (libvirtd crash) by triggering a failed. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Denial Of Service Authentication Bypass Libvirt +1
NVD
EPSS 0% CVSS 7.3
HIGH This Week

The Data Provisioning Agent (aka DP Agent) in SAP HANA does not properly restrict access to service functionality, which allows remote attackers to obtain sensitive information, gain privileges, and. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

SAP Authentication Bypass Hana
NVD
EPSS 16% CVSS 8.2
HIGH Act Now

Xen, when used on a system providing PV backends, allows local guest OS administrators to cause a denial of service (host OS crash) or gain privileges by writing to memory shared between the frontend. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. Epss exploitation probability 16.0% and no vendor patch available.

Denial Of Service Authentication Bypass Xen +1
NVD
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

OpenStack Image Service (Glance) before 2015.1.3 (kilo) and 11.0.x before 11.0.2 (liberty), when show_multiple_locations is enabled, allow remote authenticated users to change image status and upload. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.

Authentication Bypass Image Registry And Delivery Service Glance
NVD
EPSS 24% CVSS 6.5
MEDIUM This Month

Microsoft Edge allows remote attackers to bypass the Same Origin Policy via unspecified vectors, aka "Microsoft Edge Elevation of Privilege Vulnerability," a different vulnerability than. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 23.9% and no vendor patch available.

Authentication Bypass Microsoft Edge
NVD
EPSS 19% CVSS 6.5
MEDIUM This Month

Microsoft Edge allows remote attackers to bypass the Same Origin Policy via unspecified vectors, aka "Microsoft Edge Elevation of Privilege Vulnerability," a different vulnerability than. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 18.9% and no vendor patch available.

Authentication Bypass Microsoft Edge
NVD
EPSS 34% CVSS 7.8
HIGH Act Now

OLE in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT 8.1 allows remote attackers to execute arbitrary. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Epss exploitation probability 33.7% and no vendor patch available.

Microsoft RCE Authentication Bypass +6
NVD
EPSS 2% CVSS 9.3
CRITICAL Act Now

Hyper-V in Microsoft Windows 8.1, Windows Server 2012 Gold and R2, and Windows 10 allows guest OS users to execute arbitrary code on the host OS via a crafted application, aka "Hyper-V Remote Code. Rated critical severity (CVSS 9.3), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Microsoft RCE Authentication Bypass +3
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

The Form API in Drupal 6.x before 6.38 ignores access restrictions on submit buttons, which might allow remote attackers to bypass intended access restrictions by leveraging permission to submit a. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

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

The File module in Drupal 7.x before 7.43 and 8.x before 8.0.4 allows remote authenticated users to bypass access restrictions and read, delete, or substitute a link to a file uploaded to an. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity.

Authentication Bypass Drupal Debian Linux
NVD
EPSS 1% CVSS 8.1
HIGH PATCH This Week

Salt 2015.8.x before 2015.8.4 does not properly handle clear messages on the minion, which allows man-in-the-middle attackers to execute arbitrary code by inserting packets into the minion-master. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required.

RCE Authentication Bypass Salt +1
NVD
EPSS 2% CVSS 9.8
CRITICAL PATCH Act Now

The Admin UI in Apache Ranger before 0.5.1 does not properly handle authentication requests that lack a password, which allows remote attackers to bypass authentication by leveraging knowledge of a. 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.

Apache Authentication Bypass Ranger
NVD
EPSS 0% CVSS 4.3
MEDIUM This Month

Incomplete blacklist vulnerability in the Configuration utility in F5 BIG-IP LTM, Analytics, APM, ASM, GTM, Link Controller, and PSM 11.x before 11.2.1 HF11, 11.3.x, 11.4.0 before HF8, and 11.4.1. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

PHP Authentication Bypass Big Ip Access Policy Manager +12
NVD
EPSS 43% 4.8 CVSS 9.8
CRITICAL POC THREAT Emergency

The HTTP server in Trend Micro Password Manager allows remote web servers to execute arbitrary commands via the url parameter to (1) api/openUrlInDefaultBrowser or (2) api/showSB. 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 43.1%.

Trend Micro Authentication Bypass Password Manager
NVD Exploit-DB
EPSS 0% CVSS 6.5
MEDIUM This Month

The Terminal Services Remote Desktop Protocol (RDP) client session restrictions feature in Pulse Connect Secure (aka PCS) 8.1R7 and 8.2R1 allow remote authenticated users to bypass intended access. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Pulse Connect Secure
NVD
EPSS 0% CVSS 8.8
HIGH This Week

Puppet Enterprise 2015.3 before 2015.3.1 allows remote attackers to bypass a host whitelist protection mechanism by leveraging the Puppet communications protocol. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Puppet Enterprise
NVD
EPSS 2% CVSS 7.5
HIGH PATCH This Week

PostgreSQL before 9.5.x before 9.5.2 does not properly maintain row-security status in cached plans, which might allow attackers to bypass intended access restrictions by leveraging a session that. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass PostgreSQL
NVD
EPSS 2% CVSS 8.1
HIGH PATCH This Week

Adobe Flash Player before 18.0.0.343 and 19.x through 21.x before 21.0.0.213 on Windows and OS X and before 11.2.202.616 on Linux allows attackers to bypass intended access restrictions via. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Adobe Microsoft +5
NVD
EPSS 2% CVSS 8.1
HIGH PATCH This Week

Adobe Flash Player before 18.0.0.343 and 19.x through 21.x before 21.0.0.213 on Windows and OS X and before 11.2.202.616 on Linux allows attackers to bypass the ASLR protection mechanism via JIT data. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Adobe Microsoft +5
NVD
EPSS 0% CVSS 5.1
MEDIUM POC This Month

The McAfee VirusScan Console (mcconsol.exe) in McAfee Active Response (MAR) before 1.1.0.161, Agent (MA) 5.x before 5.0.2 Hotfix 1110392 (5.0.2.333), Data Exchange Layer 2.x (DXL) before 2.0.1.140.1,. Rated medium severity (CVSS 5.1), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Microsoft Authentication Bypass Active Response +6
NVD Exploit-DB
EPSS 0% CVSS 7.5
HIGH This Week

McAfee Advanced Threat Defense (ATD) before 3.4.8.178 might allow remote attackers to bypass malware detection by leveraging information about the parent process. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Advanced Threat Defense
NVD
EPSS 27% CVSS 7.5
HIGH Act Now

Perl might allow context-dependent attackers to bypass the taint protection mechanism in a child process via duplicate environment variables in envp. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 27.4% and no vendor patch available.

Authentication Bypass Perl Debian Linux +8
NVD
EPSS 0% CVSS 8.8
HIGH This Week

The XML Data Archiving Service (XML DAS) in SAP NetWeaver AS Java does not check authorization, which allows remote authenticated users to obtain sensitive information, gain privileges, or possibly. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

SAP Java Authentication Bypass +1
NVD
EPSS 2% CVSS 7.5
HIGH PATCH This Week

The HTTP header parsing code in Node.js 0.10.x before 0.10.42, 0.11.6 through 0.11.16, 0.12.x before 0.12.10, 4.x before 4.3.0, and 5.x before 5.6.0 allows remote attackers to bypass an HTTP. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Node.js Authentication Bypass Node Js +1
NVD
EPSS 0% CVSS 7.8
HIGH This Week

The ovisp driver in Huawei P8 smartphones with software GRA-TL00 before GRA-TL00C01B230, GRA-CL00 before GRA-CL00C92B230, GRA-CL10 before GRA-CL10C92B230, GRA-UL00 before GRA-UL00C00B230, and. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Huawei Authentication Bypass +2
NVD
EPSS 0% CVSS 7.8
HIGH This Week

The Graphics driver in Huawei P8 smartphones with software GRA-TL00 before GRA-TL00C01B230, GRA-CL00 before GRA-CL00C92B230, GRA-CL10 before GRA-CL10C92B230, GRA-UL00 before GRA-UL00C00B230, and. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Huawei Authentication Bypass +3
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

The Maxim_smartpa_dev driver in Huawei P8 smartphones with software GRA-TL00 before GRA-TL00C01B230, GRA-CL00 before GRA-CL00C92B230, GRA-CL10 before GRA-CL10C92B230, GRA-UL00 before GRA-UL00C00B230,. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Huawei Authentication Bypass +2
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

The Graphics driver in Huawei P8 smartphones with software GRA-TL00 before GRA-TL00C01B230, GRA-CL00 before GRA-CL00C92B230, GRA-CL10 before GRA-CL10C92B230, GRA-UL00 before GRA-UL00C00B230, and. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Denial Of Service Huawei Authentication Bypass +2
NVD
EPSS 0% CVSS 6.3
MEDIUM This Month

IAB.exe in Rockwell Automation Integrated Architecture Builder (IAB) before 9.6.0.8 and 9.7.x before 9.7.0.2 allows remote attackers to execute arbitrary code via a crafted project file. Rated medium severity (CVSS 6.3). No vendor patch available.

Rockwell RCE Authentication Bypass +1
NVD
EPSS 0% CVSS 7.5
HIGH This Week

Eaton Lighting EG2 Web Control 4.04P and earlier allows remote attackers to have an unspecified impact via a modified cookie. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Eg2 Web Control
NVD
EPSS 0% CVSS 9.1
CRITICAL Act Now

The FTP server in Pro-face GP-Pro EX EX-ED before 4.05.000, PFXEXEDV before 4.05.000, PFXEXEDLS before 4.05.000, and PFXEXGRPLS before 4.05.000 has hardcoded credentials, which makes it easier for. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Proface Gp Pro Ex Ex Ed Proface Gp Pro Ex Pfxexedls +2
NVD
EPSS 0% CVSS 4.3
MEDIUM This Month

shiprec.xml in the SHIPREC application in IBM Maximo Asset Management 7.1 and 7.5 before 7.5.0.10 and 7.6 before 7.6.0.4 allows remote authenticated users to bypass intended item-selection. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

IBM Authentication Bypass Maximo Asset Management
NVD
EPSS 2% CVSS 7.5
HIGH This Week

The server in IBM Tivoli Storage Manager FastBack 5.5.x and 6.x before 6.1.12.2 allows remote attackers to cause a denial of service (service crash) via crafted packets to a TCP port. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

IBM Denial Of Service Authentication Bypass +1
NVD
EPSS 0% CVSS 7.5
HIGH This Week

Cisco FireSIGHT System Software 5.4.0 through 6.0.1 and ASA with FirePOWER Services 5.4.0 through 6.0.0.1 allow remote attackers to bypass malware protection via crafted fields in HTTP headers, aka. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cisco Authentication Bypass Asa With Firepower Services +1
NVD
EPSS 0% CVSS 6.2
MEDIUM This Month

The XPC Services API in LaunchServices in Apple iOS before 9.3 allows attackers to bypass intended event-handler restrictions and modify an arbitrary app's events via a crafted app. Rated medium severity (CVSS 6.2), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

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

The client implementation in IBM Informix Dynamic Server 11.70.xCn on Windows does not properly restrict access to the (1) nsrd, (2) nsrexecd, and (3) portmap executable files, which allows local. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity.

Microsoft IBM Authentication Bypass +1
NVD
EPSS 1% CVSS 6.5
MEDIUM This Month

WebKit in Apple iOS before 9.3 and Safari before 9.1 does not properly restrict redirects that specify a TCP port number, which allows remote attackers to bypass intended port restrictions via a. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Authentication Bypass Safari +1
NVD
EPSS 0% CVSS 5.3
MEDIUM This Month

Web Server in Apple OS X Server before 5.1 does not properly restrict access to .DS_Store and .htaccess files, which allows remote attackers to obtain sensitive configuration information via an HTTP. 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 Server
NVD
EPSS 0% CVSS 5.3
MEDIUM This Month

The Time Machine server in Server App in Apple OS X Server before 5.1 does not notify the user about ignored permissions during a backup, which makes it easier for remote attackers to obtain. 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 Server
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

The Reminders component in Apple OS X before 10.11.4 allows attackers to bypass an intended user-confirmation requirement and trigger a dialing action via a tel: URL. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Apple Authentication Bypass Mac Os X
NVD
EPSS 0% CVSS 7.8
HIGH This Week

dyld in Apple OS X before 10.11.4 allows attackers to bypass a code-signing protection mechanism via a modified app. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Apple Authentication Bypass Mac Os X
NVD
EPSS 28% CVSS 6.4
MEDIUM POC THREAT This Month

CRLF injection vulnerability in Dropbear SSH before 2016.72 allows remote authenticated users to bypass intended shell-command restrictions via crafted X11 forwarding data. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 27.6%.

Authentication Bypass Dropbear Ssh
NVD GitHub Exploit-DB
EPSS 47% 4.2 CVSS 6.4
MEDIUM POC THREAT This Month

Multiple CRLF injection vulnerabilities in session.c in sshd in OpenSSH before 7.2p2 allow remote authenticated users to bypass intended shell-command restrictions via crafted X11 forwarding data,. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 47.1%.

SSH Authentication Bypass
NVD GitHub Exploit-DB VulDB
EPSS 14% CVSS 9.8
CRITICAL Act Now

HP Support Assistant before 8.1.52.1 allows remote attackers to bypass authentication via unspecified vectors. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 14.5% and no vendor patch available.

HP Authentication Bypass Support Assistant
NVD
EPSS 0% CVSS 6.5
MEDIUM This Month

Siemens SIMATIC S7-1200 CPU devices before 4.0 allow remote attackers to bypass a "user program block" protection mechanism via unspecified vectors. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Siemens Simatic S7 Cpu 1200 Firmware
NVD
EPSS 0% CVSS 4.3
MEDIUM This Month

IBM Maximo Asset Management 7.6 before 7.6.0.3 IFIX001 allows remote authenticated users to bypass intended access restrictions and read arbitrary purchase-order work logs via unspecified vectors. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

IBM Authentication Bypass Maximo Asset Management +7
NVD
EPSS 1% CVSS 3.7
LOW Monitor

IBM WebSphere Commerce 6.x through 6.0.0.11, 7.x through 7.0.0.9, and 8.x before 8.0.0.3 allows remote attackers to cause a denial of service (order-processing outage) via unspecified vectors. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

IBM Denial Of Service Authentication Bypass +1
NVD
EPSS 4% CVSS 6.5
MEDIUM This Month

The SMB1 implementation in smbd in Samba 3.x and 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4 allows remote authenticated users to modify arbitrary ACLs by. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Samba Ubuntu Linux +1
NVD
EPSS 0% CVSS 6.1
MEDIUM This Month

Setup Wizard in Android 5.1.x before LMY49H and 6.x before 2016-03-01 allows physically proximate attackers to bypass the Factory Reset Protection protection mechanism and delete data via unspecified. Rated medium severity (CVSS 6.1), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

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

The LIST_POISON feature in include/linux/poison.h in the Linux kernel before 4.3, as used in Android 6.0.1 before 2016-03-01, does not properly consider the relationship to the mmap_min_addr value,. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. This Use of Uninitialized Resource vulnerability could allow attackers to access uninitialized memory causing crashes or information disclosure.

Google Linux Authentication Bypass +2
NVD GitHub
EPSS 33% CVSS 9.8
CRITICAL Emergency

Microsoft .NET Framework 2.0 SP2, 3.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, and 4.6.1 mishandles signature validation for unspecified elements of XML documents, which allows remote attackers to spoof. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Epss exploitation probability 32.6% and no vendor patch available.

Authentication Bypass Microsoft Net Framework
NVD
EPSS 1% CVSS 6.3
MEDIUM This Month

extensions/renderer/resources/platform_app.js in the Extensions subsystem in Google Chrome before 49.0.2623.75 does not properly restrict use of Web APIs, which allows remote attackers to bypass. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Google Authentication Bypass Chrome
NVD
EPSS 0% CVSS 5.3
MEDIUM This Month

Moxa ioLogik E2200 devices before 3.12 and ioAdmin Configuration Utility before 3.18 do not properly encrypt data, which makes it easier for remote attackers to obtain the associated cleartext via. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Ioadmin Firmware Iologik Firmware
NVD
EPSS 0% CVSS 5.3
MEDIUM This Month

Moxa ioLogik E2200 devices before 3.12 and ioAdmin Configuration Utility before 3.18 do not properly encrypt credentials, which makes it easier for remote attackers to obtain the associated cleartext. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Ioadmin Firmware Iologik Firmware
NVD
EPSS 0% CVSS 7.9
HIGH This Week

Sure Start on HP Commercial PCs 2015 allows local users to cause a denial of service (BIOS recovery failure) by leveraging administrative access. Rated high severity (CVSS 7.9), this vulnerability is low attack complexity. No vendor patch available.

HP Denial Of Service Authentication Bypass +7
NVD
EPSS 0% CVSS 3.7
LOW Monitor

Cisco FireSIGHT System Software 6.1.0 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to enumerate valid usernames by measuring timing. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Cisco Authentication Bypass Firesight System Software
NVD
EPSS 0% CVSS 3.1
LOW Monitor

IBM InfoSphere Information Server 8.5 through FP3, 8.7 through FP2, 9.1 through 9.1.2.0, 11.3 through 11.3.1.2, and 11.5 allows remote authenticated users to bypass intended access restrictions via a. Rated low severity (CVSS 3.1), this vulnerability is remotely exploitable. No vendor patch available.

IBM Authentication Bypass Infosphere Information Server
NVD
EPSS 2% CVSS 9.8
CRITICAL Act Now

Cisco NX-OS 6.0(2)U6(1) through 6.0(2)U6(5) on Nexus 3000 devices and 6.0(2)A6(1) through 6.0(2)A6(5) and 6.0(2)A7(1) on Nexus 3500 devices has hardcoded credentials, which allows remote attackers to. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cisco Authentication Bypass X14J Firmware +3
NVD
EPSS 14% CVSS 7.2
HIGH POC THREAT Act Now

Schneider Electric Struxureware Building Operations Automation Server AS 1.7 and earlier and AS-P 1.7 and earlier allows remote authenticated administrators to execute arbitrary OS commands by. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and EPSS exploitation probability 14.0%.

Schneider Electric Authentication Bypass Struxureware Building Operations Automation Server As Firmware +1
NVD Exploit-DB
EPSS 0% CVSS 9.8
CRITICAL Act Now

The FTP service in QNAP iArtist Lite before 1.4.54, as distributed with QNAP Signage Station before 2.0.1, has hardcoded credentials, which makes it easier for remote attackers to obtain access via a. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Qnap Authentication Bypass Iartist Lite +1
NVD
EPSS 0% CVSS 7.5
HIGH This Week

QNAP Signage Station before 2.0.1 allows remote attackers to bypass authentication, and consequently upload files, via a spoofed HTTP request. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Qnap Authentication Bypass Sinage Station
NVD
EPSS 0% CVSS 9.8
CRITICAL Act Now

Cisco NX-OS 7.0(1)N1(1), 7.0(1)N1(3), and 7.0(4)N1(1) on Nexus 2000 Fabric Extender devices has a blank root password, which allows local users to gain privileges via unspecified vectors, aka Bug ID. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cisco Authentication Bypass Nx Os
NVD
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

Moodle 2.9.x before 2.9.3 does not properly check the contact list before authorizing message transmission, which allows remote authenticated users to bypass intended access restrictions and conduct. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.

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

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 control, which. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Vesp211 Eu Firmware Vesp211 232 Firmware
NVD
EPSS 2% CVSS 5.3
MEDIUM PATCH This Month

Active Model in Ruby on Rails 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 supports the use of instance-level writers for class accessors, which allows remote attackers. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Rails Debian Linux +2
NVD
EPSS 1% CVSS 5.3
MEDIUM PATCH This Month

activerecord/lib/active_record/nested_attributes.rb in Active Record in Ruby on Rails 3.1.x and 3.2.x before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Authentication Bypass Rails Ruby On Rails
NVD
EPSS 2% CVSS 3.7
LOW PATCH Monitor

The http_basic_authenticate_with method in actionpack/lib/action_controller/metal/http_authentication.rb in the Basic Authentication implementation in Action Controller in Ruby on Rails before. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required.

Authentication Bypass Rails Ruby On Rails
NVD
EPSS 0% CVSS 4.4
MEDIUM This Month

IBM Security QRadar SIEM 7.1.x before 7.1 MR2 Patch 12 and 7.2.x before 7.2.6 includes SSH private keys during backup operations, which allows remote authenticated administrators to obtain sensitive. Rated medium severity (CVSS 4.4), this vulnerability is remotely exploitable. No vendor patch available.

IBM Authentication Bypass Qradar Security Information And Event Manager
NVD
EPSS 0% CVSS 8.8
HIGH This Week

Tollgrade SmartGrid LightHouse Sensor Management System (SMS) Software EMS before 5.1, and 4.1.0 Build 16, allows remote authenticated users to change arbitrary passwords via unspecified vectors. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Authentication Bypass Smartgrid Lighthouse Sensor Management System
NVD
EPSS 0% CVSS 7.5
HIGH This Week

The proxy engine in Cisco Advanced Malware Protection (AMP), when used with Email Security Appliance (ESA) 9.5.0-201, 9.6.0-051, and 9.7.0-125, allows remote attackers to bypass intended content. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Cisco Authentication Bypass Email Security Appliance Firmeware
NVD
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Quick Facts

Typical Severity
CRITICAL
Category
auth
Total CVEs
33257

MITRE ATT&CK

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