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CWE-295

1,690 CVEs • Abstraction: Base

Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

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CVEs (1,690)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Mongodb
1Mongodb
Jun 17, 2026
Aug 23, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
If the MongoDB Server running on Windows or macOS is configured to use TLS with a specific set of configuration options that are already known to work securely in other platforms (e.g. Linux), it is possible that client...Show more
If the MongoDB Server running on Windows or macOS is configured to use TLS with a specific set of configuration options that are already known to work securely in other platforms (e.g. Linux), it is possible that client certificate validation may not be in effect, potentially allowing client to establish a TLS connection with the server that supplies any certificate. This issue affect all MongoDB Server v6.3 versions, MongoDB Server v5.0 versions v5.0.0 to v5.0.14 and all MongoDB Server v4.4 versions.Show less
1Google
1Android
Jun 17, 2026
Aug 14, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
In multiple locations, there are root CA certificates which need to be disabled. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploit...Show more
In multiple locations, there are root CA certificates which need to be disabled. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation. Show less
1Veritas
1Netbackup Snapshot Manager
Jun 17, 2026
Aug 11, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A vulnerability was discovered in Veritas NetBackup Snapshot Manager before 10.2.0.1 that allowed untrusted clients to interact with the RabbitMQ service. This was caused by improper validation of the client certificate...Show more
A vulnerability was discovered in Veritas NetBackup Snapshot Manager before 10.2.0.1 that allowed untrusted clients to interact with the RabbitMQ service. This was caused by improper validation of the client certificate due to misconfiguration of the RabbitMQ service. Exploiting this impacts the confidentiality and integrity of messages controlling the backup and restore jobs, and could result in the service becoming unavailable. This impacts only the jobs controlling the backup and restore activities, and does not allow access to (or deletion of) the backup snapshot data itself. This vulnerability is confined to the NetBackup Snapshot Manager feature and does not impact the RabbitMQ instance on the NetBackup primary servers.Show less
1Matrix
1Sydent
Jun 17, 2026
Aug 4, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP servers' certificates. This makes Sydent's emails vulnerab...Show more
Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP servers' certificates. This makes Sydent's emails vulnerable to interception via a man-in-the-middle (MITM) attack. Attackers with privileged access to the network can intercept room invitations and address confirmation emails. This is patched in Sydent 2.5.6. When patching, make sure that Sydent trusts the certificate of the server it is connecting to. This should happen automatically when using properly issued certificates. Those who use self-signed certificates should make sure to copy their Certification Authority certificate, or their self signed certificate if using only one, to the trust store of your operating system. As a workaround, one can ensure Sydent's emails fail to send by setting the configured SMTP server to a loopback or non-routable address under one's control which does not have a listening SMTP server.Show less
1Hitachi
1Device Manager
Jun 17, 2026
Jul 18, 2023
N/A· v4
8.1 HIGH· v3
N/A· v2
Improper Validation of Certificate with Host Mismatch vulnerability in Hitachi Device Manager on Windows, Linux (Device Manager Server, Device Manager Agent, Host Data Collector components) allows Man in the Middle Attac...Show more
Improper Validation of Certificate with Host Mismatch vulnerability in Hitachi Device Manager on Windows, Linux (Device Manager Server, Device Manager Agent, Host Data Collector components) allows Man in the Middle Attack.This issue affects Hitachi Device Manager: before 8.8.5-02. Show less
1Wolfssl
1Wolfssl
Jun 17, 2026
Jul 17, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value wh...Show more
If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used.  Show less
1Mattermost
1Mattermost
Jun 17, 2026
Jul 17, 2023
N/A· v4
8.1 HIGH· v3
N/A· v2
Mattermost iOS app fails to properly validate the server certificate while initializing the TLS connection allowing a network attacker to intercept the WebSockets connection.
1Cryptography.io
1Cryptography
Jun 17, 2026
Jul 14, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
The cryptography package before 41.0.2 for Python mishandles SSH certificates that have critical options.
1Bluemark
1Dronescout Ds230 Firmware
Jun 17, 2026
Jul 11, 2023
N/A· v4
8.1 HIGH· v3
N/A· v2
DroneScout ds230 Remote ID receiver from BlueMark Innovations is affected by an Improper Authentication vulnerability during the firmware update procedure. Specifically, the firmware update procedure ignores and does no...Show more
DroneScout ds230 Remote ID receiver from BlueMark Innovations is affected by an Improper Authentication vulnerability during the firmware update procedure. Specifically, the firmware update procedure ignores and does not check the validity of the TLS certificate of the HTTPS endpoint from which the firmware update package (.tar.bz2 file) is downloaded. An attacker with the ability to put himself in a Man-in-the-Middle situation (e.g., DNS poisoning, ARP poisoning, control of a node on the route to the endpoint, etc.) can trick the DroneScout ds230 to install a crafted malicious firmware update containing arbitrary files (e.g., executable and configuration) and gain administrative (root) privileges on the underlying Linux operating system. This issue affects DroneScout ds230 firmware from version 20211210-1627 through 20230329-1042.Show less
1Milesight
1Ur32l Firmware
Jun 17, 2026
Jul 6, 2023
N/A· v4
8.1 HIGH· v3
N/A· v2
A misconfiguration vulnerability exists in the urvpn_client functionality of Milesight UR32L v32.3.0.5. A specially-crafted man-in-the-middle attack can lead to increased privileges. An attacker can perform a man-in-the-...Show more
A misconfiguration vulnerability exists in the urvpn_client functionality of Milesight UR32L v32.3.0.5. A specially-crafted man-in-the-middle attack can lead to increased privileges. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.Show less
1Bouncycastle
1Bc Java
Jun 17, 2026
Jul 5, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Bouncy Castle For Java before 1.74 is affected by an LDAP injection vulnerability. The vulnerability only affects applications that use an LDAP CertStore from Bouncy Castle to validate X.509 certificates. During the cert...Show more
Bouncy Castle For Java before 1.74 is affected by an LDAP injection vulnerability. The vulnerability only affects applications that use an LDAP CertStore from Bouncy Castle to validate X.509 certificates. During the certificate validation process, Bouncy Castle inserts the certificate's Subject Name into an LDAP search filter without any escaping, which leads to an LDAP injection vulnerability.Show less
1Dell
45Vxrail D560 Firmware
Vxrail D560f FirmwareVxrail E460 Firmware+42 more
Jun 17, 2026
Jun 23, 2023
N/A· v4
3.3 LOW· v3
N/A· v2
Dell VxRail, versions prior to 7.0.450, contain an improper certificate validation vulnerability. A high privileged remote attacker may potentially exploit this vulnerability to carry out a man-in-the-middle attack by s...Show more
Dell VxRail, versions prior to 7.0.450, contain an improper certificate validation vulnerability. A high privileged remote attacker may potentially exploit this vulnerability to carry out a man-in-the-middle attack by supplying a crafted certificate and intercepting the victim's traffic to view or modify a victim’s data in transit. Show less
1Mozilla
3Firefox
Firefox EsrThunderbird
Oct 24, 2026
Jun 19, 2023
N/A· v4
3.1 LOW· v3
N/A· v2
The error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protect prompts and permission dialogs from attacks that exploit human response time delays. If a malicious page eli...Show more
The error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protect prompts and permission dialogs from attacks that exploit human response time delays. If a malicious page elicited user clicks in precise locations immediately before navigating to a site with a certificate error and made the renderer extremely busy at the same time, it could create a gap between when the error page was loaded and when the display actually refreshed. With the right timing the elicited clicks could land in that gap and activate the button that overrides the certificate error for that site. This vulnerability affects Firefox ESR < 102.12, Firefox < 114, and Thunderbird < 102.12.Show less
14d
1Server
Jun 17, 2026
Jun 16, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
An information disclosure vulnerability in 4D SAS 4D Server Application v17, v18, v19 R7 and earlier allows attackers to retrieve password hashes for all users via eavesdropping.
1Jenkins
1Checkmarx
Jun 17, 2026
Jun 14, 2023
N/A· v4
8.1 HIGH· v3
N/A· v2
Jenkins Checkmarx Plugin 2022.4.3 and earlier disables SSL/TLS validation for connections to the Checkmarx server by default.
1Runsystem
1Jiyu Kukan Toku Toku Coupon
Jun 17, 2026
Jun 13, 2023
N/A· v4
4.8 MEDIUM· v3
N/A· v2
Jiyu Kukan Toku-Toku coupon App for iOS versions 3.5.0 and earlier, and Jiyu Kukan Toku-Toku coupon App for Android versions 3.5.0 and earlier are vulnerable to improper server certificate verification. If this vulnerabi...Show more
Jiyu Kukan Toku-Toku coupon App for iOS versions 3.5.0 and earlier, and Jiyu Kukan Toku-Toku coupon App for Android versions 3.5.0 and earlier are vulnerable to improper server certificate verification. If this vulnerability is exploited, a man-in-the-middle attack may allow an attacker to eavesdrop on an encrypted communication.Show less
1Fortinet
2Fortios
Fortiproxy
Jun 17, 2026
Jun 13, 2023
N/A· v4
4.8 MEDIUM· v3
N/A· v2
An improper certificate validation vulnerability [CWE-295] in FortiOS 6.2 all versions, 6.4 all versions, 7.0.0 through 7.0.10, 7.2.0 and FortiProxy 1.2 all versions, 2.0 all versions, 7.0.0 through 7.0.9, 7.2.0 through...Show more
An improper certificate validation vulnerability [CWE-295] in FortiOS 6.2 all versions, 6.4 all versions, 7.0.0 through 7.0.10, 7.2.0 and FortiProxy 1.2 all versions, 2.0 all versions, 7.0.0 through 7.0.9, 7.2.0 through 7.2.3 may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the vulnerable device and the remote FortiGuard's map server.Show less
3Debian
FedoraprojectQt
3Debian Linux
FedoraQt
Jun 17, 2026
Jun 5, 2023
N/A· v4
5.3 MEDIUM· v3
N/A· v2
An issue was discovered in Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2. Certificate validation for TLS does not always consider whether the root of a chain is a configured CA certificate.
1Mozilla
1Thunderbird
Oct 23, 2026
Jun 2, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
OCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and revoked certificates would be accepted. Thunderbird versions from 68 to 102.9.1 were affected by this bug. This vu...Show more
OCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and revoked certificates would be accepted. Thunderbird versions from 68 to 102.9.1 were affected by this bug. This vulnerability affects Thunderbird < 102.10.Show less
1Mozilla
1Thunderbird
Oct 24, 2026
Jun 2, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Certificate OCSP revocation status was not checked when verifying S/Mime signatures. Mail signed with a revoked certificate would be displayed as having a valid signature. Thunderbird versions from 68 to 102.7.0 were aff...Show more
Certificate OCSP revocation status was not checked when verifying S/Mime signatures. Mail signed with a revoked certificate would be displayed as having a valid signature. Thunderbird versions from 68 to 102.7.0 were affected by this bug. This vulnerability affects Thunderbird < 102.7.1.Show less