CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
2171 vulnerabilities reference this CWE, most recent first.
GHSA-GMVH-JJ3C-4M6J
Vulnerability from github – Published: 2025-08-28 15:30 – Updated: 2025-09-23 18:30Improper Certificate Validation in Checkmk Exchange plugin Freebox v6 agent allows attackers in MitM position to intercept traffic.
{
"affected": [],
"aliases": [
"CVE-2025-58125"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-28T13:16:10Z",
"severity": "MODERATE"
},
"details": "Improper Certificate Validation in Checkmk Exchange plugin Freebox v6 agent allows attackers in MitM position to intercept traffic.",
"id": "GHSA-gmvh-jj3c-4m6j",
"modified": "2025-09-23T18:30:21Z",
"published": "2025-08-28T15:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-58125"
},
{
"type": "WEB",
"url": "https://exchange.checkmk.com/p/freebox-v6"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-GP77-R46P-XFVC
Vulnerability from github – Published: 2026-07-14 18:31 – Updated: 2026-07-14 18:31A improper certificate validation vulnerability in Fortinet FortiClientEMS 7.4.3 through 7.4.5, FortiClientEMS 7.4.0 through 7.4.1, FortiClientEMS 7.2 all versions may allow attacker to information disclosure via
{
"affected": [],
"aliases": [
"CVE-2026-59836"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T16:17:02Z",
"severity": "HIGH"
},
"details": "A improper certificate validation vulnerability in Fortinet FortiClientEMS 7.4.3 through 7.4.5, FortiClientEMS 7.4.0 through 7.4.1, FortiClientEMS 7.2 all versions may allow attacker to information disclosure via \u003cinsert attack vector here\u003e",
"id": "GHSA-gp77-r46p-xfvc",
"modified": "2026-07-14T18:31:56Z",
"published": "2026-07-14T18:31:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59836"
},
{
"type": "WEB",
"url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-147"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-GP9V-8HXX-PQXM
Vulnerability from github – Published: 2022-05-13 01:38 – Updated: 2022-05-13 01:38On iOS and Android devices, the ShoreTel Mobility Client app version 9.1.3.109 fails to properly validate SSL certificates provided by HTTPS connections, which means that an attacker in the position to perform MITM attacks may be able to obtain sensitive account information such as login credentials.
{
"affected": [],
"aliases": [
"CVE-2016-6562"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-07-13T20:29:00Z",
"severity": "HIGH"
},
"details": "On iOS and Android devices, the ShoreTel Mobility Client app version 9.1.3.109 fails to properly validate SSL certificates provided by HTTPS connections, which means that an attacker in the position to perform MITM attacks may be able to obtain sensitive account information such as login credentials.",
"id": "GHSA-gp9v-8hxx-pqxm",
"modified": "2022-05-13T01:38:44Z",
"published": "2022-05-13T01:38:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-6562"
},
{
"type": "WEB",
"url": "https://www.info-sec.ca/advisories/ShoreTel-Mobility.html"
},
{
"type": "WEB",
"url": "https://www.kb.cert.org/vuls/id/475907"
},
{
"type": "WEB",
"url": "https://www.securityfocus.com/bid/95224"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-GQ3H-4HC4-6J3M
Vulnerability from github – Published: 2022-05-24 16:45 – Updated: 2024-04-04 03:03The PrinterLogic Print Management software, versions up to and including 18.3.1.96, does not validate, or incorrectly validates, the PrinterLogic management portal's SSL certificate. When a certificate is invalid or malicious, it might allow an attacker to spoof a trusted entity by using a man-in-the-middle (MITM) attack. The software might connect to a malicious host while believing it is a trusted host, or the software might be deceived into accepting spoofed data that appears to originate from a trusted host.
{
"affected": [],
"aliases": [
"CVE-2018-5408"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-05-08T15:30:00Z",
"severity": "HIGH"
},
"details": "The PrinterLogic Print Management software, versions up to and including 18.3.1.96, does not validate, or incorrectly validates, the PrinterLogic management portal\u0027s SSL certificate. When a certificate is invalid or malicious, it might allow an attacker to spoof a trusted entity by using a man-in-the-middle (MITM) attack. The software might connect to a malicious host while believing it is a trusted host, or the software might be deceived into accepting spoofed data that appears to originate from a trusted host.",
"id": "GHSA-gq3h-4hc4-6j3m",
"modified": "2024-04-04T03:03:04Z",
"published": "2022-05-24T16:45:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5408"
},
{
"type": "WEB",
"url": "https://kb.cert.org/vuls/id/169249"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/108285"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-GQ8M-RWGG-6VV3
Vulnerability from github – Published: 2022-05-13 01:13 – Updated: 2025-04-20 03:47libvirt version 2.3.0 and later is vulnerable to a bad default configuration of "verify-peer=no" passed to QEMU by libvirt resulting in a failure to validate SSL/TLS certificates by default.
{
"affected": [],
"aliases": [
"CVE-2017-1000256"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-10-31T15:29:00Z",
"severity": "HIGH"
},
"details": "libvirt version 2.3.0 and later is vulnerable to a bad default configuration of \"verify-peer=no\" passed to QEMU by libvirt resulting in a failure to validate SSL/TLS certificates by default.",
"id": "GHSA-gq8m-rwgg-6vv3",
"modified": "2025-04-20T03:47:56Z",
"published": "2022-05-13T01:13:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-1000256"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2017-1000256"
},
{
"type": "WEB",
"url": "https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1556251.html"
},
{
"type": "WEB",
"url": "https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1556251.html"
},
{
"type": "WEB",
"url": "https://www.redhat.com/archives/libvirt-announce/2017-October/msg00001.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2017/dsa-4003"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-GQVF-892R-VJM5
Vulnerability from github – Published: 2021-04-13 15:42 – Updated: 2023-07-05 19:26Previously, Puppet operated on the model that a node with a valid certificate was entitled to all information in the system and that a compromised certificate allowed access to everything in the infrastructure. When a node's catalog falls back to the default node, the catalog can be retrieved for a different node by modifying facts for the Puppet run. This issue can be mitigated by setting strict_hostname_checking = true in puppet.conf on your Puppet master. Puppet 6.13.0 changes the default behavior for strict_hostname_checking from false to true. It is recommended that Puppet Open Source and Puppet Enterprise users that are not upgrading still set strict_hostname_checking to true to ensure secure behavior.
{
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "puppet"
},
"ranges": [
{
"events": [
{
"introduced": "6.0.0"
},
{
"fixed": "6.13.0"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "RubyGems",
"name": "puppet"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.5.19"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-7942"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": true,
"github_reviewed_at": "2021-04-07T23:15:22Z",
"nvd_published_at": "2020-02-19T21:15:00Z",
"severity": "MODERATE"
},
"details": "Previously, Puppet operated on the model that a node with a valid certificate was entitled to all information in the system and that a compromised certificate allowed access to everything in the infrastructure. When a node\u0027s catalog falls back to the `default` node, the catalog can be retrieved for a different node by modifying facts for the Puppet run. This issue can be mitigated by setting `strict_hostname_checking = true` in `puppet.conf` on your Puppet master. Puppet 6.13.0 changes the default behavior for strict_hostname_checking from false to true. It is recommended that Puppet Open Source and Puppet Enterprise users that are not upgrading still set strict_hostname_checking to true to ensure secure behavior.",
"id": "GHSA-gqvf-892r-vjm5",
"modified": "2023-07-05T19:26:32Z",
"published": "2021-04-13T15:42:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7942"
},
{
"type": "WEB",
"url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/puppet/CVE-2020-7942.yml"
},
{
"type": "WEB",
"url": "https://puppet.com/security/cve/CVE-2020-7942"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Improper Certificate Validation in Puppet"
}
GHSA-GQX9-9G2R-R86M
Vulnerability from github – Published: 2025-08-13 15:30 – Updated: 2025-08-13 15:30F5 Access for Android before version 3.1.2 which uses HTTPS does not verify the remote endpoint identity.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
{
"affected": [],
"aliases": [
"CVE-2025-54809"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-13T15:15:38Z",
"severity": "HIGH"
},
"details": "F5 Access for Android before version 3.1.2 which uses HTTPS does not verify the remote endpoint identity.\n\n \n\n\nNote: Software versions which have reached End of Technical Support (EoTS) are not evaluated.",
"id": "GHSA-gqx9-9g2r-r86m",
"modified": "2025-08-13T15:30:35Z",
"published": "2025-08-13T15:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54809"
},
{
"type": "WEB",
"url": "https://my.f5.com/manage/s/article/K000152049"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-GRG9-VQCX-FRVJ
Vulnerability from github – Published: 2026-08-13 03:31 – Updated: 2026-09-10 18:31Improper certificate validation vulnerabilities in Palo Alto Networks GlobalProtect™ app enable an unauthenticated attacker with man-in-the-middle (MitM) access to intercept and modify application communications. VPN tunnel traffic is not impacted.
The GlobalProtect app on iOS, Android, and Chrome OS is not affected.
{
"affected": [],
"aliases": [
"CVE-2026-0296"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-13T03:16:44Z",
"severity": "MODERATE"
},
"details": "Improper certificate validation vulnerabilities in Palo Alto Networks GlobalProtect\u2122 app enable an unauthenticated attacker with man-in-the-middle (MitM) access to intercept and modify application communications. VPN tunnel traffic is not impacted.\n\nThe GlobalProtect app on iOS, Android, and Chrome OS is not affected.",
"id": "GHSA-grg9-vqcx-frvj",
"modified": "2026-09-10T18:31:21Z",
"published": "2026-08-13T03:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0296"
},
{
"type": "WEB",
"url": "https://security.paloaltonetworks.com/CVE-2026-0296"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:D/RE:M/U:Amber",
"type": "CVSS_V4"
}
]
}
GHSA-GRJ7-W2G4-4R4W
Vulnerability from github – Published: 2023-09-19 18:30 – Updated: 2024-04-04 07:44MiniTool Movie Maker 4.1 contains an insecure installation process that allows attackers to achieve remote code execution through a man in the middle attack.
{
"affected": [],
"aliases": [
"CVE-2023-38354"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-09-19T16:15:11Z",
"severity": "HIGH"
},
"details": "MiniTool Movie Maker 4.1 contains an insecure installation process that allows attackers to achieve remote code execution through a man in the middle attack.",
"id": "GHSA-grj7-w2g4-4r4w",
"modified": "2024-04-04T07:44:08Z",
"published": "2023-09-19T18:30:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38354"
},
{
"type": "WEB",
"url": "https://0dr3f.github.io/cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-GRP5-5X2W-CR8H
Vulnerability from github – Published: 2022-05-24 19:01 – Updated: 2022-05-24 19:01Pax Technology PAXSTORE v7.0.8_20200511171508 and lower is affected by an information disclosure vulnerability. Through the PUK signature functionality, an administrator will not have access to the current p12 certificate and password. When accessing this functionality, the administrator has the option to replace the current certificate and it is not possible to view the certificate password (p12) already deployed on the platform. The replacement p12 certificate returns to users in base64 with its password, which can be accessed by non-administrator users.
{
"affected": [],
"aliases": [
"CVE-2020-36127"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-07T11:15:00Z",
"severity": "MODERATE"
},
"details": "Pax Technology PAXSTORE v7.0.8_20200511171508 and lower is affected by an information disclosure vulnerability. Through the PUK signature functionality, an administrator will not have access to the current p12 certificate and password. When accessing this functionality, the administrator has the option to replace the current certificate and it is not possible to view the certificate password (p12) already deployed on the platform. The replacement p12 certificate returns to users in base64 with its password, which can be accessed by non-administrator users.",
"id": "GHSA-grp5-5x2w-cr8h",
"modified": "2022-05-24T19:01:47Z",
"published": "2022-05-24T19:01:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36127"
},
{
"type": "WEB",
"url": "https://blog.pridesec.com.br/p/4c972078-5f01-419e-8bea-cf31ff2e3670"
},
{
"type": "WEB",
"url": "https://marketing.paxtechnology.com/about-pax"
},
{
"type": "WEB",
"url": "https://www.whatspos.com"
}
],
"schema_version": "1.4.0",
"severity": []
}
Mitigation
Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
Mitigation
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.