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CWE-287

5,229 CVEs • Abstraction: Class • Likelihood of Exploit: High

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

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CVEs (5,229)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Dataprobe
1Ibootbar Firmware
May 13, 2026
Apr 7, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Dataprobe iBootBar (with 2007-09-20 and possibly later beta firmware) allows remote attackers to bypass authentication, and conduct power-cycle attacks on connected devices, via a DCCOOKIE cookie.
1Dataprobe
1Ibootbar Firmware
May 13, 2026
Apr 7, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Dataprobe iBootBar (with 2007-09-20 and possibly later released firmware) allows remote attackers to bypass authentication, and conduct power-cycle attacks on connected devices, via a DCRABBIT cookie.
1Airtame
1Hdmi Dongle Firmware
May 13, 2026
Apr 5, 2017
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
AIRTAME HDMI dongle with firmware before 2.2.0 allows unauthenticated access to a big part of the management interface. It is possible to extract all information including the Wi-Fi password, reboot, or force a software...Show more
AIRTAME HDMI dongle with firmware before 2.2.0 allows unauthenticated access to a big part of the management interface. It is possible to extract all information including the Wi-Fi password, reboot, or force a software update at an arbitrary time.Show less
1Ceragon
1Fibeair Ip 10 Firmware
May 13, 2026
Mar 30, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
In the GUI of Ceragon FibeAir IP-10 (before 7.2.0) devices, a remote attacker can bypass authentication by adding an ALBATROSS cookie with the value 0-4-11 to their browser.
1Siemens
1Ruggedcom Rox I
May 13, 2026
Mar 29, 2017
N/A· v4
8.8 HIGH· v3
6.5 MEDIUM· v2
Siemens RUGGEDCOM ROX I (all versions) allow an authenticated user to bypass access restrictions in the web interface at port 10000/TCP to obtain privileged file system access or change configuration settings.
2Nextcloud
Owncloud
2Nextcloud Server
Owncloud
May 13, 2026
Mar 28, 2017
N/A· v4
8.1 HIGH· v3
6.8 MEDIUM· v2
Nextcloud Server before 9.0.54 and 10.0.1 & ownCloud Server before 9.1.2, 9.0.6, and 8.2.9 suffer from SMB User Authentication Bypass. Nextcloud/ownCloud include an optional and not by default enabled SMB authentication...Show more
Nextcloud Server before 9.0.54 and 10.0.1 & ownCloud Server before 9.1.2, 9.0.6, and 8.2.9 suffer from SMB User Authentication Bypass. Nextcloud/ownCloud include an optional and not by default enabled SMB authentication component that allows authenticating users against an SMB server. This backend is implemented in a way that tries to connect to a SMB server and if that succeeded consider the user logged-in. The backend did not properly take into account SMB servers that have any kind of anonymous auth configured. This is the default on SMB servers nowadays and allows an unauthenticated attacker to gain access to an account without valid credentials. Note: The SMB backend is disabled by default and requires manual configuration in the Nextcloud/ownCloud config file. If you have not configured the SMB backend then you're not affected by this vulnerability.Show less
1Revive Adserver
1Revive Adserver
May 13, 2026
Mar 28, 2017
N/A· v4
9.8 CRITICAL· v3
5.0 MEDIUM· v2
Revive Adserver before 3.2.3 suffers from Improper Restriction of Excessive Authentication Attempts. The login page of Revive Adserver is vulnerable to password-guessing attacks. An account lockdown feature was considere...Show more
Revive Adserver before 3.2.3 suffers from Improper Restriction of Excessive Authentication Attempts. The login page of Revive Adserver is vulnerable to password-guessing attacks. An account lockdown feature was considered, but rejected to avoid introducing service disruptions to regular users during such attacks. A random delay has instead been introduced as a countermeasure in case of password failures, along with a system to discourage parallel brute forcing. These systems will effectively allow the valid users to log in to the adserver, even while an attack is in progress.Show less
1Eviewgps
1Ev 07s Gps Tracker Firmware
May 13, 2026
Mar 27, 2017
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
Due to a lack of authentication, an unauthenticated user who knows the Eview EV-07S GPS Tracker's phone number can revert the device to a factory default configuration with an SMS command, "RESET!"
1Juniper
1Junos Space
May 13, 2026
Mar 20, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Insufficient authentication vulnerability in Junos Space before 15.2R2 allows remote network based users with access to Junos Space web interface to perform certain administrative tasks without authentication.
1Cisco
1Webex Meetings Server
May 13, 2026
Mar 17, 2017
N/A· v4
6.5 MEDIUM· v3
6.4 MEDIUM· v2
An Authentication Bypass vulnerability in Cisco WebEx Meetings Server could allow an unauthenticated, remote attacker to access limited meeting information on the Cisco WebEx Meetings Server. More Information: CSCvd50728...Show more
An Authentication Bypass vulnerability in Cisco WebEx Meetings Server could allow an unauthenticated, remote attacker to access limited meeting information on the Cisco WebEx Meetings Server. More Information: CSCvd50728. Known Affected Releases: 2.6 2.7 2.8 CWMS-2.5MR1 Orion1.1.2.patch T29_orion_merge.Show less
1Cisco
1Adaptive Security Appliance Software
May 13, 2026
Mar 17, 2017
N/A· v4
5.3 MEDIUM· v3
5.0 MEDIUM· v2
A vulnerability in the Border Gateway Protocol (BGP) Bidirectional Forwarding Detection (BFD) implementation of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to bypass t...Show more
A vulnerability in the Border Gateway Protocol (BGP) Bidirectional Forwarding Detection (BFD) implementation of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to bypass the access control list (ACL) for specific TCP and UDP traffic. More Information: CSCvc68229. Known Affected Releases: 9.6(2). Known Fixed Releases: 99.1(20.1) 99.1(10.2) 98.1(12.7) 98.1(1.49) 97.1(6.58) 97.1(0.134) 96.2(0.109) 9.7(1.1) 9.6(2.99) 9.6(2.8).Show less
1Neutrinolabs
1Xrdp
May 13, 2026
Mar 17, 2017
N/A· v4
7.3 HIGH· v3
7.5 HIGH· v2
xrdp 0.9.1 calls the PAM function auth_start_session() in an incorrect location, leading to PAM session modules not being properly initialized, with a potential consequence of incorrect configurations or elevation of pri...Show more
xrdp 0.9.1 calls the PAM function auth_start_session() in an incorrect location, leading to PAM session modules not being properly initialized, with a potential consequence of incorrect configurations or elevation of privileges, aka a pam_limits.so bypass.Show less
1Microsoft
7Windows 10
Windows 7Windows 8.1+4 more
May 13, 2026
Mar 17, 2017
N/A· v4
7.8 HIGH· v3
4.4 MEDIUM· v2
A DCOM object in Helppane.exe in Microsoft Windows 7 SP1; Windows Server 2008 R2; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows local users...Show more
A DCOM object in Helppane.exe in Microsoft Windows 7 SP1; Windows Server 2008 R2; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows local users to gain privileges via a crafted application, aka "Windows HelpPane Elevation of Privilege Vulnerability."Show less
1Cisco
2Wireless Lan Controller Firmware
Wireless Lan Controller Software
May 13, 2026
Mar 15, 2017
N/A· v4
8.8 HIGH· v3
8.3 HIGH· v2
A vulnerability in the mesh code of Cisco Wireless LAN Controller (WLC) software could allow an unauthenticated, remote attacker to impersonate a WLC in a meshed topology. The vulnerability is due to insufficient authent...Show more
A vulnerability in the mesh code of Cisco Wireless LAN Controller (WLC) software could allow an unauthenticated, remote attacker to impersonate a WLC in a meshed topology. The vulnerability is due to insufficient authentication of the parent access point in a mesh configuration. An attacker could exploit this vulnerability by forcing the target system to disconnect from the correct parent access point and reconnect to a rogue access point owned by the attacker. An exploit could allow the attacker to control the traffic flowing through the impacted access point or take full control of the target system. This vulnerability affects the following products running a vulnerable version of Wireless LAN Controller software and configured for meshed mode: Cisco 8500 Series Wireless Controller, Cisco 5500 Series Wireless Controller, Cisco 2500 Series Wireless Controller, Cisco Flex 7500 Series Wireless Controller, Cisco Virtual Wireless Controller, Wireless Services Module 2 (WiSM2). Note that additional configuration is needed in addition to upgrading to a fixed release. Cisco Bug IDs: CSCuc98992 CSCuu14804.Show less
1Cisco
1Aironet Access Point Software
May 13, 2026
Mar 15, 2017
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
A vulnerability in the web-based GUI of Cisco Mobility Express 1800 Series Access Points could allow an unauthenticated, remote attacker to bypass authentication. The attacker could be granted full administrator privileg...Show more
A vulnerability in the web-based GUI of Cisco Mobility Express 1800 Series Access Points could allow an unauthenticated, remote attacker to bypass authentication. The attacker could be granted full administrator privileges. The vulnerability is due to improper implementation of authentication for accessing certain web pages using the GUI interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web interface of the affected system. A successful exploit could allow the attacker to bypass authentication and perform unauthorized configuration changes or issue control commands to the affected device. This vulnerability affects Cisco Mobility Express 1800 Series Access Points running a software version prior to 8.2.110.0. Cisco Bug IDs: CSCuy68219.Show less
1Mcafee
1Virusscan Enterprise
May 13, 2026
Mar 14, 2017
N/A· v4
8.1 HIGH· v3
6.8 MEDIUM· v2
Authentication bypass by assumed-immutable data vulnerability in Intel Security VirusScan Enterprise Linux (VSEL) 2.0.3 (and earlier) allows remote unauthenticated attacker to bypass server authentication via a crafted a...Show more
Authentication bypass by assumed-immutable data vulnerability in Intel Security VirusScan Enterprise Linux (VSEL) 2.0.3 (and earlier) allows remote unauthenticated attacker to bypass server authentication via a crafted authentication cookie.Show less
1Mcafee
1Virusscan Enterprise
May 13, 2026
Mar 14, 2017
N/A· v4
7.5 HIGH· v3
5.1 MEDIUM· v2
Authentication bypass by spoofing vulnerability in Intel Security VirusScan Enterprise Linux (VSEL) 2.0.3 (and earlier) allows remote unauthenticated attacker to execute arbitrary code or cause a denial of service via a...Show more
Authentication bypass by spoofing vulnerability in Intel Security VirusScan Enterprise Linux (VSEL) 2.0.3 (and earlier) allows remote unauthenticated attacker to execute arbitrary code or cause a denial of service via a crafted authentication cookie.Show less
1Zammad
1Zammad
May 13, 2026
Mar 13, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An issue was discovered in Zammad before 1.0.4, 1.1.x before 1.1.3, and 1.2.x before 1.2.1. Attackers can login with the hashed password itself (e.g., from the DB) instead of the valid password string.
1Dnatools
1Dnalims
May 13, 2026
Mar 9, 2017
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
An issue was discovered in dnaTools dnaLIMS 4-2015s13. dnaLIMS is vulnerable to unauthenticated command execution through an improperly protected administrative web shell (cgi-bin/dna/sysAdmin.cgi POST requests).
1Asus
1Rt Ac53 Firmware
May 13, 2026
Mar 9, 2017
N/A· v4
8.8 HIGH· v3
9.3 HIGH· v2
Session hijack vulnerability in httpd on ASUS RT-N56U, RT-N66U, RT-AC66U, RT-N66R, RT-AC66R, RT-AC68U, RT-AC68R, RT-N66W, RT-AC66W, RT-AC87R, RT-AC87U, RT-AC51U, RT-AC68P, RT-N11P, RT-N12+, RT-N12E B1, RT-AC3200, RT-AC53...Show more
Session hijack vulnerability in httpd on ASUS RT-N56U, RT-N66U, RT-AC66U, RT-N66R, RT-AC66R, RT-AC68U, RT-AC68R, RT-N66W, RT-AC66W, RT-AC87R, RT-AC87U, RT-AC51U, RT-AC68P, RT-N11P, RT-N12+, RT-N12E B1, RT-AC3200, RT-AC53U, RT-AC1750, RT-AC1900P, RT-N300, and RT-AC750 routers with firmware before 3.0.0.4.380.7378; RT-AC68W routers with firmware before 3.0.0.4.380.7266; and RT-N600, RT-N12+ B1, RT-N11P B1, RT-N12VP B1, RT-N12E C1, RT-N300 B1, and RT-N12+ Pro routers with firmware before 3.0.0.4.380.9488; and Asuswrt-Merlin firmware before 380.65_2 allows remote attackers to steal any active admin session by sending cgi_logout and asusrouter-Windows-IFTTT-1.0 in certain HTTP headers.Show less