Common Weakness Enumeration
CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
1903 vulnerabilities reference this CWE, most recent first.
CVE-2025-53869 (GCVE-0-2025-53869)
Vulnerability from cvelistv5 – Published: 2026-01-29 02:40 – Updated: 2026-01-29 19:56
VLAI
EPSS
VEX
Summary
Multiple MFPs provided by Brother Industries, Ltd. does not properly validate server certificates, which may allow a man-in-the-middle attacker to replace the set of root certificates used by the product with a set of arbitrary certificates.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper certificate validation
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Brother Industries, Ltd. | Multiple MFPs |
Affected:
see the information provided by the vendor
|
|
| Konica Minolta, Inc. | Multiple MFPs |
Affected:
see the information provided by the vendor
|
|
| Ricoh Company, Ltd. | Multiple MFPs |
Affected:
see the information provided by the vendor
|
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CVE-2025-52919 (GCVE-0-2025-52919)
Vulnerability from cvelistv5 – Published: 2025-06-21 00:00 – Updated: 2025-07-28 13:16
VLAI
EPSS
VEX
Summary
In Yealink RPS before 2025-05-26, the certificate upload function does not properly validate certificate content, potentially allowing invalid certificates to be uploaded.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
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CVE-2025-52598 (GCVE-0-2025-52598)
Vulnerability from cvelistv5 – Published: 2025-12-26 04:07 – Updated: 2025-12-26 15:15
VLAI
EPSS
VEX
Title
Insufficient certificate validation
Summary
Cybersecurity Nozomi Networks Labs, a specialized security company focused on Industrial Control Systems (ICS) and OT/IoT security, has found a flaw that camera's client service does not perform certificate validation. The manufacturer has released patch firmware for the flaw, please refer to the manufacturer's report for details and workarounds.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Hanwha Vision Co., Ltd. | QNV-C8012 |
Affected:
Prior to version 2.22.05
|
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CVE-2025-48802 (GCVE-0-2025-48802)
Vulnerability from cvelistv5 – Published: 2025-07-08 16:57 – Updated: 2026-02-13 19:07
VLAI
EPSS
VEX
Title
Windows SMB Server Spoofing Vulnerability
Summary
Improper certificate validation in Windows SMB allows an authorized attacker to perform spoofing over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 11 version 22H2 |
Affected:
10.0.22621.0 , < 10.0.22621.5624
(custom)
|
|
| Microsoft | Windows 11 version 22H3 |
Affected:
10.0.22631.0 , < 10.0.22631.5624
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.5624
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.3932
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.1732
(custom)
|
Date Public
2025-07-08 07:00
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CVE-2025-48393 (GCVE-0-2025-48393)
Vulnerability from cvelistv5 – Published: 2025-08-06 15:25 – Updated: 2026-02-09 05:35
VLAI
EPSS
VEX
Summary
The server identity check mechanism for firmware upgrade performed via command shell is insecurely implemented potentially allowing an attacker to perform a Man-in-the-middle attack. This security issue has been fixed in the latest firmware version of Eaton G4 PDU which is available on the Eaton download center.
Severity
5.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
Date Public
2025-08-06 14:30
Credits
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CVE-2025-46788 (GCVE-0-2025-46788)
Vulnerability from cvelistv5 – Published: 2025-07-10 15:48 – Updated: 2025-07-10 20:17
VLAI
EPSS
VEX
Title
Zoom Workplace for Linux - Improper Certificate Validation
Summary
Improper certificate validation in Zoom Workplace for Linux before version 6.4.13 may allow an unauthorized user to conduct an information disclosure via network access.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Zoom Communications Inc. | Zoom Workplace for Linux |
Affected:
0 , < 6.4.13
(custom)
|
Date Public
2025-07-08 12:00
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CVE-2025-46551 (GCVE-0-2025-46551)
Vulnerability from cvelistv5 – Published: 2025-05-07 16:12 – Updated: 2025-05-07 20:17
VLAI
EPSS
VEX
Title
JRuby-OpenSSL has hostname verification disabled by default
Summary
JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby-OpenSSL version 0.12.1 and prior to version 0.15.4 (corresponding to JRuby versions starting in 9.3.4.0 prior to 9.4.12.1 and 10.0.0.0 prior to 10.0.0.1), when verifying SSL certificates, JRuby-OpenSSL does not verify that the hostname presented in the certificate matches the one the user tries to connect to. This means a man-in-the-middle could just present any valid cert for a completely different domain they own, and JRuby would accept the cert. Anybody using JRuby to make requests of external APIs, or scraping the web, that depends on https to connect securely. JRuby-OpenSSL version 0.15.4 contains a fix for the issue. This fix is included in JRuby versions 10.0.0.1 and 9.4.12.1.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jruby/jruby-openssl/security/a… | x_refsource_CONFIRM |
| https://github.com/jruby/jruby-openssl/commit/31a… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| jruby | jruby-openssl |
Affected:
>= 0.12.1, < 0.15.4
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CVE-2025-44018 (GCVE-0-2025-44018)
Vulnerability from cvelistv5 – Published: 2025-11-24 15:11 – Updated: 2025-11-24 17:03
VLAI
EPSS
VEX
Summary
A firmware downgrade vulnerability exists in the OTA Update functionality of GL-Inet GL-AXT1800 4.7.0. A specially crafted .tar file can lead to a firmware downgrade. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.
Severity
8.3 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GL-Inet | GL-AXT1800 |
Affected:
4.7.0
|
Credits
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CVE-2025-42611 (GCVE-0-2025-42611)
Vulnerability from cvelistv5 – Published: 2026-05-05 10:58 – Updated: 2026-05-05 12:49
VLAI
EPSS
VEX
Title
Improper certificate validation in multiple RouterOS services
Summary
RouterOS provides various services that rely on correct
verification of client and server certificates to secure confidentiality and
integrity of communications. This includes OpenVPN, CAPsMAN, Dot1x (802.1X),
among others.
The vulnerability lies in shared certificate validation
logic which uses the system certificate store that is shared and equally
trusted by all system services. This causes confusion of scope, allowing any
certificate authority present in the system-wide trust store to be trusted in
any context (with some exceptions), allowing partial or full authentication
bypass in CAPsMAN, OpenVPN, Dot1X and potentially others.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper certificate validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.cert.si/en/cve-2025-42611/ | third-party-advisorygovernment-resource |
Impacted products
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CVE-2025-40896 (GCVE-0-2025-40896)
Vulnerability from cvelistv5 – Published: 2026-03-04 13:52 – Updated: 2026-03-04 14:11
VLAI
EPSS
VEX
Title
Lack of TLS certificate validation when connecting Arc to a Guardian or CMC, in Arc before v2.2.0
Summary
The server certificate was not verified when an Arc agent connected to a Guardian or CMC.
A malicious actor could perform a man-in-the-middle attack and intercept the communication between the Arc agent and the Guardian or CMC. This could result in theft of the client token and sensitive information (such as assets and alerts), impersonation of the server, or injection of spoofed data (such as false asset information or vulnerabilities) into the Guardian or CMC.
Severity
6.5 (Medium)
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
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Nozomi Networks | Arc |
Affected:
0 , < 2.2.0
(semver)
|
Date Public
2026-03-04 08:00
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.