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-2026-23998 (GCVE-0-2026-23998)
Vulnerability from cvelistv5 – Published: 2026-05-14 18:48 – Updated: 2026-05-15 14:12
VLAI
EPSS
VEX
Title
Fleet has a Windows MDM management endpoint authentication bypass
Summary
Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet’s Windows MDM management endpoint could allow requests to be processed without proper client certificate validation. In certain circumstances, this could allow an attacker to impersonate an enrolled Windows device and retrieve sensitive configuration data. Fleet’s Windows MDM management endpoint relies on mutual TLS (mTLS) client certificates to authenticate enrolled devices. In affected versions, requests that did not present a client certificate could be incorrectly treated as trusted. As a result, an attacker with prior knowledge of a valid enrolled device identifier could potentially impersonate that device and receive configuration payloads intended for it. These payloads may contain sensitive information such as Wi-Fi or VPN configuration data, certificates, or other secrets delivered through MDM profiles. This issue does not allow enrollment of new devices, administrative access to Fleet, or compromise of the Fleet control plane. Impact is limited to the targeted Windows device. Version 4.81.0 contains a patch. If an immediate upgrade is not possible, affected Fleet users should temporarily disable Windows MDM.
Severity
SSVC
Exploitation: none
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/fleetdm/fleet/security/advisor… | x_refsource_CONFIRM |
| https://github.com/fleetdm/fleet/releases/tag/fle… | x_refsource_MISC |
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CVE-2026-23776 (GCVE-0-2026-23776)
Vulnerability from cvelistv5 – Published: 2026-04-17 08:56 – Updated: 2026-04-20 14:06
VLAI
EPSS
VEX
Summary
Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.60, contain(s) an Improper Certificate Validation vulnerability in certificate-based login. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges.
Severity
7.2 (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.dell.com/support/kbdoc/en-us/00045069… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | PowerProtect Data Domain |
Affected:
0 , < 8.3.1.30 or later
(semver)
Affected: 0 , < 7.13.1.70 or later (semver) Affected: 0 , < 8.6.0.0 or later (semver) Affected: 0 , < 2.7.9 with DD OS 8.3.1.30 (semver) |
Date Public
2026-04-15 18:30
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CVE-2026-22696 (GCVE-0-2026-22696)
Vulnerability from cvelistv5 – Published: 2026-01-26 21:28 – Updated: 2026-01-27 21:43
VLAI
EPSS
VEX
Title
dcap-qvl has Missing Verification for QE Identity
Summary
dcap-qvl implements the quote verification logic for DCAP (Data Center Attestation Primitives). A vulnerability present in versions prior to 0.3.9 involves a critical gap in the cryptographic verification process within the dcap-qvl. The library fetches QE Identity collateral (including qe_identity, qe_identity_signature, and qe_identity_issuer_chain) from the PCCS. However, it skips to verify the QE Identity signature against its certificate chain and does not enforce policy constraints on the QE Report. An attacker can forge the QE Identity data to whitelist a malicious or non-Intel Quoting Enclave. This allows the attacker to forge the QE and sign untrusted quotes that the verifier will accept as valid. Effectively, this bypasses the entire remote attestation security model, as the verifier can no longer trust the entity responsible for signing the quotes. All deployments utilizing the dcap-qvl library for SGX or TDX quote verification are affected. The vulnerability has been patched in dcap-qvl version 0.3.9. The fix implements the missing cryptographic verification for the QE Identity signature and enforces the required checks for MRSIGNER, ISVPRODID, and ISVSVN against the QE Report. Users of the `@phala/dcap-qvl-node` and `@phala/dcap-qvl-web` packages should switch to the pure JavaScript implementation, `@phala/dcap-qvl`. There are no known workarounds for this vulnerability. Users must upgrade to the patched version to ensure that QE Identity collateral is properly verified.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Phala-Network/dcap-qvl/securit… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Phala-Network | dcap-qvl |
Affected:
< 0.3.9
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CVE-2026-22613 (GCVE-0-2026-22613)
Vulnerability from cvelistv5 – Published: 2026-02-09 05:39 – Updated: 2026-02-09 16:10
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
Network M3
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
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eaton | Network M3 |
Affected:
0 , < 2.3.3
(custom)
|
Date Public
2026-02-09 05:37
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CVE-2026-22250 (GCVE-0-2026-22250)
Vulnerability from cvelistv5 – Published: 2026-01-12 17:52 – Updated: 2026-01-12 18:07
VLAI
EPSS
VEX
Title
wlc can skip SSL verification
Summary
wlc is a Weblate command-line client using Weblate's REST API. Prior to 1.17.0, the SSL verification would be skipped for some crafted URLs. This vulnerability is fixed in 1.17.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/WeblateOrg/wlc/security/adviso… | x_refsource_CONFIRM |
| https://github.com/WeblateOrg/wlc/pull/1097 | x_refsource_MISC |
| https://github.com/WeblateOrg/wlc/commit/a513864e… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| WeblateOrg | wlc |
Affected:
< 1.17.0
|
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CVE-2026-22093 (GCVE-0-2026-22093)
Vulnerability from cvelistv5 – Published: 2026-07-13 09:10 – Updated: 2026-07-13 13:12
VLAI
EPSS
VEX
Title
Adversary-in-the-Middle (AitM) attack vulnerability in EVbee Service app
Summary
The EVbee Service Android app uses TLS encrypted communication (HTTPS), but does not validate the certificate provided by the server. This allows an attacker on the network path between the app and EVbee server to intercept and manipulate the communication between the app and server. The traffic is weakly encrypted using RC4 with a hardcoded key, which allows an attacker to gain access to the communication. Part of this communication involves access codes to charging stations.
This issue affects EVbee Service: v1.4.101.00.
Severity
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://csirt.divd.nl/DIVD-2026-00001/ | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EVbee | EVbee Service |
Affected:
0 , < 1.4.7.10
(semver)
|
Credits
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CVE-2026-21228 (GCVE-0-2026-21228)
Vulnerability from cvelistv5 – Published: 2026-02-10 17:51 – Updated: 2026-05-11 21:25
VLAI
EPSS
VEX
Title
Azure Local Remote Code Execution Vulnerability
Summary
Improper certificate validation in Azure Local allows an unauthorized attacker to execute code over a network.
Severity
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://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Azure Local |
Affected:
1.0.0 , < 2510.0.3002
(custom)
|
Date Public
2026-02-10 16:00
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CVE-2026-20184 (GCVE-0-2026-20184)
Vulnerability from cvelistv5 – Published: 2026-04-15 16:03 – Updated: 2026-04-16 19:07
VLAI
EPSS
VEX
Title
Cisco Webex Meetings Certificate Validation Vulnerability
Summary
A vulnerability in the integration of single sign-on (SSO) with Control Hub in Cisco Webex Services could have allowed an unauthenticated, remote attacker to impersonate any user within the service.
This vulnerability existed because of improper certificate validation. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by connecting to a service endpoint and supplying a crafted token. A successful exploit could have allowed the attacker to gain unauthorized access to legitimate Cisco Webex services.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
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 Webex Meetings |
Affected:
39.7.7
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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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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.