Weakness (CWE)
CWE-295: Improper Certificate Validation
The product does not validate, or incorrectly validates, a certificate.
How to prevent it (2 mitigations)
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Architecture and Design, Implementation
Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
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Implementation
If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.
Source: MITRE CWE-295
18 results · Clear filters · Feed
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High 8.7CVE-2026-92744 Public exploit
Delinea Privilege Manager agent unauthenticated remote code execution vulnerability
Under certain conditions, privilege manager agent allows a remote unauthenticated attacker to execute arbitrary code as LocalSystem.
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High 7.4CVE-2026-106069 Public exploit
A flaw in Node.js TLS hostname verification can cause a server certificate to be validated against a different IP addre…
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High 7.4CVE-2026-105483 Public exploit
A flaw in Node.js TLS hostname verification allows a certificate without a matching IP address SAN to authenticate a co…
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High 7.4CVE-2026-105221 Public exploit
Gist RubyGem before 6.1.0 Disabled TLS Certificate Verification
The gist RubyGem before 6.1.0 contains an improper certificate validation vulnerability that allows on-path attackers to intercept HTTPS traffic because http_connection in lib/gist.rb sets VERIFY_NONE. Attackers can present any certificate to read or modify G…
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High 7.4CVE-2026-15911 Public exploit
Confluent Kafka Python Improper TLS Certificate Validation
Confluent Kafka Python client's HashiCorp Vault KMS integration could allow a remote attacker to obtain sensitive information due to improper TLS certificate validation.
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High 7.4CVE-2026-100835 Public exploit
Contrast before 1.16.0 Remote Attestation Relay Attack
Contrast before 1.16.0 is susceptible to remote attestation relay attacks. Contrast accepted any TEE attestation report that verified correctly and contained the expected firmware patch levels and software measurements, regardless of which machine produced it…
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High 7.4CVE-2026-67598 Public exploit
Emlog Pro 2.6.23 TLS Certificate Validation Disabled in ai.php
Emlog Pro through 2.6.23 contains a disabled TLS certificate validation vulnerability in include/service/ai.php that allows network-adjacent attackers to intercept outbound HTTPS requests to configured LLM providers by presenting arbitrary TLS certificates, a…
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High 7.5CVE-2025-65753 Public exploit
An issue in the TLS certification mechanism of Guardian Gryphon v01.06.0006.22 allows attackers to execute commands as …
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High 7.5CVE-2026-25961 Public exploit
SumatraPDF Update MITM -> Arbitrary Code Execution
SumatraPDF is a multi-format reader for Windows. In 3.5.0 through 3.5.2, SumatraPDF's update mechanism disables TLS hostname verification (INTERNET_FLAG_IGNORE_CERT_CN_INVALID) and executes installers without signature checks. A network attacker with any vali…
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High 8.8CVE-2025-50944 Public exploit
An issue was discovered in the method push.lite.avtech.com.MySSLSocketFactoryNew.checkServerTrusted in AVTECH EagleEyes…
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High 8.1CVE-2025-54424 Public exploit
1Panel Agent Bypasses Certificate Verification Leading to Arbitrary Command Execution
1Panel is a web interface and MCP Server that manages websites, files, containers, databases, and LLMs on a Linux server. In versions 2.0.5 and below, the HTTPS protocol used for communication between the Core and Agent endpoints has incomplete certificate ve…
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High 8.1CVE-2024-51774 Public exploit
qBittorrent before 5.0.1 proceeds with use of https URLs even after certificate validation errors.
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High 7.4CVE-2023-1514 Public exploit
A vulnerability exists in the component RTU500 Scripting interface. When a client connects to a server using TLS, the s…
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High 7.8
In WorkSource, there is a possible parcel mismatch. This could lead to local escalation of privilege with no additional…
KEV Apr 13, 2023 -
High 7.5CVE-2023-0464 Public exploit
Excessive Resource Usage Verifying X.509 Policy Constraints
A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate …
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High 8.8
Active Directory Domain Services Elevation of Privilege Vulnerability
Active Directory Domain Services Elevation of Privilege Vulnerability
KEV Aug 18, 2022 -
High 7.4
CA certificate check bypass with X509_V_FLAG_X509_STRICT
The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded e…
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High 8.1
Certificate validation bypass on Windows in crypto/x509
A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making …
KEV Nov 3, 2021