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CWE-287

4,488 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 (4,488)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Siemens
1Sipass Integrated
May 13, 2026
Aug 8, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A vulnerability was discovered in Siemens SiPass integrated (All versions before V2.70) that could allow an attacker with network access to the SiPass integrated server to bypass the authentication mechanism and perform...Show more
A vulnerability was discovered in Siemens SiPass integrated (All versions before V2.70) that could allow an attacker with network access to the SiPass integrated server to bypass the authentication mechanism and perform administrative operations.Show less
1Siemens
2Simatic Wincc Sm@rtclient
Simatic Wincc Sm@rtclient Lite
May 13, 2026
Aug 8, 2017
N/A· v4
5.4 MEDIUM· v3
4.6 MEDIUM· v2
A vulnerability was discovered in Siemens SIMATIC WinCC Sm@rtClient for Android (All versions before V1.0.2.2) and SIMATIC WinCC Sm@rtClient for Android Lite (All versions before V1.0.2.2). An attacker with physical acce...Show more
A vulnerability was discovered in Siemens SIMATIC WinCC Sm@rtClient for Android (All versions before V1.0.2.2) and SIMATIC WinCC Sm@rtClient for Android Lite (All versions before V1.0.2.2). An attacker with physical access to an unlocked mobile device, that has the affected app running, could bypass the app's authentication mechanism under certain conditions.Show less
1Siemens
1Viewport For Web Office Portal
May 13, 2026
Aug 8, 2017
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
A vulnerability was discovered in Siemens ViewPort for Web Office Portal before revision number 1453 that could allow an unauthenticated remote user to upload arbitrary code and execute it with the permissions of the ope...Show more
A vulnerability was discovered in Siemens ViewPort for Web Office Portal before revision number 1453 that could allow an unauthenticated remote user to upload arbitrary code and execute it with the permissions of the operating-system user running the web server by sending specially crafted network packets to port 443/TCP or port 80/TCP.Show less
3Debian
NetappNtp
7Clustered Data Ontap
Data OntapDebian Linux+4 more
May 13, 2026
Aug 7, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to bypass authentication.
1Kaseya
1Unitrends Backup
May 13, 2026
Aug 7, 2017
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
It was discovered that the api/storage web interface in Unitrends Backup (UB) before 10.0.0 has an issue in which one of its input parameters was not validated. A remote attacker could use this flaw to bypass authenticat...Show more
It was discovered that the api/storage web interface in Unitrends Backup (UB) before 10.0.0 has an issue in which one of its input parameters was not validated. A remote attacker could use this flaw to bypass authentication and execute arbitrary commands with root privilege on the target system.Show less
1Kaseya
1Unitrends Backup
May 13, 2026
Aug 7, 2017
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
It was discovered that the bpserverd proprietary protocol in Unitrends Backup (UB) before 10.0.0, as invoked through xinetd, has an issue in which its authentication can be bypassed. A remote attacker could use this issu...Show more
It was discovered that the bpserverd proprietary protocol in Unitrends Backup (UB) before 10.0.0, as invoked through xinetd, has an issue in which its authentication can be bypassed. A remote attacker could use this issue to execute arbitrary commands with root privilege on the target system.Show less
1Pdqinc
11Laserjet Firmware
Laserwash 360 FirmwareLaserwash 360 Plus Firmware+8 more
May 13, 2026
Aug 7, 2017
N/A· v4
9.4 CRITICAL· v3
7.5 HIGH· v2
An Improper Authentication issue was discovered in PDQ Manufacturing LaserWash G5 and G5 S Series all versions, LaserWash M5, all versions, LaserWash 360 and 360 Plus, all versions, LaserWash AutoXpress and AutoExpress P...Show more
An Improper Authentication issue was discovered in PDQ Manufacturing LaserWash G5 and G5 S Series all versions, LaserWash M5, all versions, LaserWash 360 and 360 Plus, all versions, LaserWash AutoXpress and AutoExpress Plus, all versions, LaserJet, all versions, ProTouch Tandem, all versions, ProTouch ICON, all versions, and ProTouch AutoGloss, all versions. The web server does not properly verify that provided authentication information is correct.Show less
1Abb
2Vsn300 Firmware
Vsn300 For React Firmware
May 13, 2026
Aug 7, 2017
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An Improper Authentication issue was discovered in ABB VSN300 WiFi Logger Card versions 1.8.15 and prior, and VSN300 WiFi Logger Card for React versions 2.1.3 and prior. By accessing a specific uniform resource locator (...Show more
An Improper Authentication issue was discovered in ABB VSN300 WiFi Logger Card versions 1.8.15 and prior, and VSN300 WiFi Logger Card for React versions 2.1.3 and prior. By accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to access internal information about status and connected devices without authenticating.Show less
1Cisco
1Identity Services Engine
May 13, 2026
Aug 7, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A vulnerability in the authentication module of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass local authentication. The vulnerability is due to improper handling of authen...Show more
A vulnerability in the authentication module of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass local authentication. The vulnerability is due to improper handling of authentication requests and policy assignment for externally authenticated users. An attacker could exploit this vulnerability by authenticating with a valid external user account that matches an internal username and incorrectly receiving the authorization policy of the internal account. An exploit could allow the attacker to have Super Admin privileges for the ISE Admin portal. This vulnerability does not affect endpoints authenticating to the ISE. The vulnerability affects Cisco ISE, Cisco ISE Express, and Cisco ISE Virtual Appliance running Release 1.3, 1.4, 2.0.0, 2.0.1, or 2.1.0. Release 2.2.x is not affected. Cisco Bug IDs: CSCvb10995.Show less
1Sma
39Sunny Boy 1.5 Firmware
Sunny Boy 2.5 FirmwareSunny Boy 3.0 Firmware+36 more
May 13, 2026
Aug 5, 2017
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
An issue was discovered in SMA Solar Technology products. An attacker can use Sunny Explorer or the SMAdata2+ network protocol to update the device firmware without ever having to authenticate. If an attacker is able to...Show more
An issue was discovered in SMA Solar Technology products. An attacker can use Sunny Explorer or the SMAdata2+ network protocol to update the device firmware without ever having to authenticate. If an attacker is able to create a custom firmware version that is accepted by the inverter, the inverter is compromised completely. This allows the attacker to do nearly anything: for example, giving access to the local OS, creating a botnet, using the inverters as a stepping stone into companies, etc. NOTE: the vendor reports that this attack has always been blocked by "a final integrity and compatibility check." Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affectedShow less
1Sma
39Sunny Boy 1.5 Firmware
Sunny Boy 2.5 FirmwareSunny Boy 3.0 Firmware+36 more
May 13, 2026
Aug 5, 2017
N/A· v4
8.1 HIGH· v3
4.3 MEDIUM· v2
An issue was discovered in SMA Solar Technology products. The SMAdata2+ communication protocol does not properly use authentication with encryption: it is vulnerable to man in the middle, packet injection, and replay att...Show more
An issue was discovered in SMA Solar Technology products. The SMAdata2+ communication protocol does not properly use authentication with encryption: it is vulnerable to man in the middle, packet injection, and replay attacks. Any setting change, authentication packet, scouting packet, etc. can be replayed, injected, or used for a man in the middle session. All functionalities available in Sunny Explorer can effectively be done from anywhere within the network as long as an attacker gets the packet setup correctly. This includes the authentication process for all (including hidden) access levels and the changing of settings in accordance with the gained access rights. Furthermore, because the SMAdata2+ communication channel is unencrypted, an attacker capable of understanding the protocol can eavesdrop on communications. NOTE: the vendor's position is that authentication with encryption is not required on an isolated subnetwork. Also, only Sunny Boy TLST-21 and TL-21 and Sunny Tripower TL-10 and TL-30 could potentially be affectedShow less
1Intercom
1Malion
May 13, 2026
Aug 4, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
MaLion for Windows and Mac 5.0.0 to 5.2.1 allows remote attackers to bypass authentication to alter settings in Relay Service Server.
1Intercom
1Malion
May 13, 2026
Aug 4, 2017
N/A· v4
8.1 HIGH· v3
6.8 MEDIUM· v2
MaLion for Windows 5.2.1 and earlier (only when "Remote Control" is installed) and MaLion for Mac 4.0.1 to 5.2.1 (only when "Remote Control" is installed) allow remote attackers to bypass authentication to execute arbitr...Show more
MaLion for Windows 5.2.1 and earlier (only when "Remote Control" is installed) and MaLion for Mac 4.0.1 to 5.2.1 (only when "Remote Control" is installed) allow remote attackers to bypass authentication to execute arbitrary commands or operations on Terminal Agent.Show less
1Comcast
1Xfinity Wifi Hotspot
May 13, 2026
Jul 31, 2017
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
Comcast XFINITY WiFi Home Hotspot devices allow remote attackers to spoof the identities of Comcast customers via a forged MAC address.
1Netcomm
24gt101w Bootloader
4gt101w Software
May 13, 2026
Jul 28, 2017
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
NetComm Wireless 4GT101W routers with Hardware: 0.01 / Software: V1.1.8.8 / Bootloader: 1.1.3 do not require authentication for logfile.html, status.html, or system_config.html.
1Buffalo
2Wapm 1166d Firmware
Wapm Apg600h Firmware
May 13, 2026
Jul 22, 2017
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
WAPM-1166D firmware Ver.1.2.7 and earlier, WAPM-APG600H firmware Ver.1.16.1 and earlier allows remote attackers to bypass authentication and access the configuration interface via unspecified vectors.
1Televes
1Coaxdata Gateway 1gbps Firmware
May 13, 2026
Jul 20, 2017
N/A· v4
9.8 CRITICAL· v3
5.0 MEDIUM· v2
Televes COAXDATA GATEWAY 1Gbps devices doc-wifi-hgw_v1.02.0014 4.20 do not check password.shtml authorization, leading to Arbitrary password change.
1Emc
1Rsa Authentication Manager
May 13, 2026
Jul 17, 2017
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
In EMC RSA Authentication Manager 8.2 SP1 Patch 1 and earlier, a malicious user logged into the Self-Service Console of RSA Authentication Manager as a target user can use a brute force attack to attempt to identify that...Show more
In EMC RSA Authentication Manager 8.2 SP1 Patch 1 and earlier, a malicious user logged into the Self-Service Console of RSA Authentication Manager as a target user can use a brute force attack to attempt to identify that user's PIN. The malicious user could potentially reset the compromised PIN to affect victim's ability to obtain access to protected resources.Show less
1Juniper
1Junos
May 13, 2026
Jul 17, 2017
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
An insufficient authentication vulnerability on platforms where Junos OS instances are run in a virtualized environment, may allow unprivileged users on the Junos OS instance to gain access to the host operating environm...Show more
An insufficient authentication vulnerability on platforms where Junos OS instances are run in a virtualized environment, may allow unprivileged users on the Junos OS instance to gain access to the host operating environment, and thus escalate privileges. Affected releases are Juniper Networks Junos OS 14.1X53 prior to 14.1X53-D40 on QFX5110, QFX5200, QFX10002, QFX10008, QFX10016, EX4600 and NFX250; 15.1 prior to 15.1R5 on EX4600; 15.1X49 prior to 15.1X49-D70 on vSRX, SRX1500, SRX4100, SRX4200; 16.1 prior to 16.1R2 on EX4600, ACX5000 series. This issue does not affect vMX. No other Juniper Networks products or platforms are affected by this issue.Show less
1Juniper
1Junos
May 13, 2026
Jul 17, 2017
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
A specific device configuration can result in a commit failure condition. When this occurs, a user is logged in without being prompted for a password while trying to login through console, ssh, ftp, telnet or su, etc., T...Show more
A specific device configuration can result in a commit failure condition. When this occurs, a user is logged in without being prompted for a password while trying to login through console, ssh, ftp, telnet or su, etc., This issue relies upon a device configuration precondition to occur. Typically, device configurations are the result of a trusted administrative change to the system's running configuration. The following error messages may be seen when this failure occurs: mgd: error: commit failed: (statements constraint check failed) Warning: Commit failed, activating partial configuration. Warning: Edit the router configuration to fix these errors. If the administrative changes are not made that result in such a failure, then this issue is not seen. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS 12.3 prior to 12.3R10, 12.3R11; 12.3X48 prior to 12.3X48-D20; 13.2 prior to 13.2R8; 13.3 prior to 13.3R7; 14.1 prior to 14.1R4-S12, 14.1R5, 14.1R6; 14.1X53 prior to 14.1X53-D30; 14.2 prior to 14.2R4; 15.1 prior to 15.1F2, 15.1F3, 15.1R2.Show less