Common Weakness Enumeration
CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
1911 vulnerabilities reference this CWE, most recent first.
CVE-2026-20042 (GCVE-0-2026-20042)
Vulnerability from cvelistv5 – Published: 2026-04-01 16:27 – Updated: 2026-04-02 03:56
VLAI
EPSS
VEX
Title
Cisco Nexus Dashboard Configuration REST API Unauthorized Access Vulnerability
Summary
A vulnerability in the configuration backup feature of Cisco Nexus Dashboard could allow an attacker who has the encryption password and access to Full or Config-only backup files to access sensitive information.
This vulnerability exists because authentication details are included in the encrypted backup files. An attacker with a valid backup file and encryption password from an affected device could decrypt the backup file. The attacker could then use the authentication details in the backup file to access internal-only APIs on the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Nexus Dashboard |
Affected:
1.1(3e)
Affected: 1.1(3c) Affected: 1.1(3d) Affected: 1.1(0d) Affected: 1.1(2i) Affected: 2.0(1b) Affected: 1.1(2h) Affected: 1.1(0c) Affected: 1.1(3f) Affected: 2.1(1d) Affected: 2.1(1e) Affected: 2.0(2g) Affected: 2.0(2h) Affected: 2.1(2d) Affected: 2.0(1d) Affected: 2.2(1h) Affected: 2.2(1e) Affected: 2.2(2d) Affected: 2.1(2f) Affected: 2.3(1c) Affected: 2.3(2b) Affected: 2.3(2c) Affected: 2.3(2d) Affected: 2.3(2e) Affected: 3.0(1f) Affected: 3.0(1i) Affected: 3.1(1k) Affected: 3.1(1l) Affected: 3.2(1e) Affected: 3.2(1i) Affected: 3.3(1a) Affected: 3.3(1b) Affected: 3.3(2b) Affected: 4.0(1i) Affected: 3.3(2g) Affected: 3.2(2f) Affected: 3.2(2g) Affected: 3.2(2m) Affected: 3.1(1n) Affected: 4.1(1g) |
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CVE-2026-15683 (GCVE-0-2026-15683)
Vulnerability from cvelistv5 – Published: 2026-07-13 21:30 – Updated: 2026-07-14 12:52
VLAI
EPSS
VEX
Title
Lorex 2K Indoor Wi-Fi Security Camera Device Management Server Improper Certificate Validation Vulnerability
Summary
Lorex 2K Indoor Wi-Fi Security Camera Device Management Server Improper Certificate Validation Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Lorex 2K Indoor Wi-Fi Security Cameras. User interaction is not required to exploit this vulnerability.
The specific flaw exists within the device management functionality. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-26851.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lorex | 2K Indoor Wi-Fi Security Camera |
Affected:
2.800.020000000.3.R.20220331
|
Date Public
2026-07-13 21:30
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CVE-2026-13410 (GCVE-0-2026-13410)
Vulnerability from cvelistv5 – Published: 2026-07-17 12:50 – Updated: 2026-07-17 17:32
VLAI
EPSS
VEX
Title
Dancer::Plugin::Auth::Google versions through 0.07 for Perl have TLS verification disabled
Summary
Dancer::Plugin::Auth::Google versions through 0.07 for Perl have TLS verification disabled.
The default user agent is initialised with SSL_verify_mode explicitly disabled.
An attacker with network man-in-the-middle (MITM) capability between the Dancer application and googleapis.com can intercept the OAuth2 token exchange and userinfo fetch, return a forged access_token and user profile, and be logged in to the Dancer application as any Google user.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/garu/Dancer-Plugin-Auth-Google… | issue-tracking |
| https://security.metacpan.org/patches/D/Dancer-Pl… | patch |
| https://metacpan.org/pod/Furl#HTTPS-requests-clai… | technical-description |
| http://www.openwall.com/lists/oss-security/2026/07/17/8 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GARU | Dancer::Plugin::Auth::Google |
Affected:
0 , ≤ 0.07
(custom)
|
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CVE-2026-13385 (GCVE-0-2026-13385)
Vulnerability from cvelistv5 – Published: 2026-07-15 02:01 – Updated: 2026-07-16 03:55
VLAI
EPSS
VEX
Summary
An Improper Validation of Integrity Check Value and Improper Certificate Validation in certain ASUS router models allows a remote man-in-the-middle(MITM) user to make the router download and execute arbitrary command via a spoofed server.
Refer to the '
Security Update for ASUS Router Firmware ' section on the ASUS Security Advisory for more information.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
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CVE-2026-12374 (GCVE-0-2026-12374)
Vulnerability from cvelistv5 – Published: 2026-07-01 14:07 – Updated: 2026-07-01 15:07
VLAI
EPSS
VEX
Title
Improper XPC caller certificate validation and TOCTOU race condition in macOS PrivilegedHelperTool
Summary
Improper certificate validation and a time-of-check time-of-use (TOCTOU) race condition in the PrivilegedHelperTool XPC service in Cato Client before v.5.13.1 on macOS allows a local authenticated attacker to escalate privileges to root via a self-signed certificate that bypasses the XPC caller verification and a symlink swap during package installation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cato Networks | SDP Client |
Affected:
5.12.0 , < 5.13.1
(semver)
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CVE-2026-11999 (GCVE-0-2026-11999)
Vulnerability from cvelistv5 – Published: 2026-06-25 16:56 – Updated: 2026-06-25 17:56
VLAI
EPSS
VEX
Title
X.509 trust-chain bypass via path-depth exhaustion in wolfSSL_X509_verify_cert()
Summary
X.509 trust-chain bypass (path-depth exhaustion) in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert()). This affects only builds with --enable-opensslextra whose application calls X509_verify_cert() with caller-supplied untrusted intermediates; for those users it is critical, otherwise the library is unaffected. Native wolfSSL TLS/DTLS usage is not impacted. X509_verify_cert() returned success based only on the last verified link rather than on reaching a trust anchor: when the supplied chain is deeper than the verifier's maximum path depth (default 100), path building runs out of depth while still walking untrusted intermediates and the chain is accepted even though it never reaches a configured trust anchor, allowing acceptance of an attacker-controlled certificate. The default TLS handshake (WOLFSSL_VERIFY_PEER) is not affected; only applications doing manual or deferred verification through this API are.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
Impacted products
Credits
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CVE-2026-11310 (GCVE-0-2026-11310)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:38 – Updated: 2026-06-26 14:02
VLAI
EPSS
VEX
Title
X.509 trust-chain bypass in wolfSSL_X509_verify_cert() via untrusted intermediate anchoring
Summary
X.509 trust-chain bypass in the OpenSSL compatibility certificate verifier (wolfSSL_X509_verify_cert()). This affects only builds with --enable-opensslextra (OPENSSL_EXTRA) and whose application validates certificates by calling X509_verify_cert() with caller-supplied untrusted intermediate certificates; for those users it is critical, otherwise the library is unaffected. In particular, native wolfSSL TLS/DTLS usage is not impacted. wolfSSL's X509_verify_cert() temporarily loads each caller-supplied untrusted intermediate into the certificate manager but failed to drop them before the trusted-store check, so an untrusted intermediate could anchor the path itself. An attacker can present a chain that never reaches a configured trust anchor and have it accepted, resulting in acceptance of an attacker-controlled certificate. This is certificate verification independent of TLS (e.g. S/MIME/CMS, code/firmware signing, JWT/JWS x5c), is not specific to any key type or algorithm, and a single untrusted intermediate suffices. The default wolfSSL TLS handshake (WOLFSSL_VERIFY_PEER) is not affected; only TLS applications doing manual or deferred peer verification through this API are, which also requires --enable-sessioncerts.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
Impacted products
Credits
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CVE-2026-10592 (GCVE-0-2026-10592)
Vulnerability from cvelistv5 – Published: 2026-06-25 19:40 – Updated: 2026-06-26 14:03
VLAI
EPSS
VEX
Title
Wildcard DNS SAN bypasses CA name-constraint checks
Summary
Certificates with wildcard DNS SANs (e.g. *.example.com) bypassed CA name-constraint checks. A certificate with a wildcard DNS SAN that should be rejected by the issuing CA's permitted/excluded DNS name constraints could be accepted.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
Impacted products
Credits
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CVE-2026-10098 (GCVE-0-2026-10098)
Vulnerability from cvelistv5 – Published: 2026-06-25 21:16 – Updated: 2026-06-26 10:34
VLAI
EPSS
VEX
Title
OCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_status
Summary
OCSP CertID serial-number length-confusion in wolfSSL_OCSP_resp_find_status allows a same-issuer SingleResponse whose serial is a prefix of the target serial to be reported as the revocation status of a different certificate. The lookup compared serial-number bytes without first requiring the two serial numbers to be of equal length, so a SingleResponse for one certificate (same issuer) whose serial is a prefix of the target's serial would match, returning the wrong certificate's status. The fix requires the serial lengths to be equal before comparing the serial bytes.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
Impacted products
Credits
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CVE-2026-9758 (GCVE-0-2026-9758)
Vulnerability from cvelistv5 – Published: 2026-06-10 12:32 – Updated: 2026-06-10 13:54
VLAI
EPSS
VEX
Title
Improper Certificate Validation in S2OPC
Summary
Improper comparison with the certificates trusted list in S2OPC allows an attacker well-formed untrusted certificate to be considered trusted
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
Impacted products
Credits
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Mitigation
Architecture and Design
Implementation
Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
Mitigation
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.
CAPEC-459: Creating a Rogue Certification Authority Certificate
An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.