Common Weakness Enumeration
CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
2039 vulnerabilities reference this CWE, most recent first.
GHSA-VRHJ-MRVH-X542
Vulnerability from github – Published: 2022-05-13 01:10 – Updated: 2022-05-13 01:10
VLAI
Details
MaLion for Mac 4.3.0 to 5.2.1 does not properly validate certificates, which may allow an attacker to eavesdrop on an encrypted communication.
Severity
5.9 (Medium)
{
"affected": [],
"aliases": [
"CVE-2017-10819"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-08-04T16:29:00Z",
"severity": "MODERATE"
},
"details": "MaLion for Mac 4.3.0 to 5.2.1 does not properly validate certificates, which may allow an attacker to eavesdrop on an encrypted communication.",
"id": "GHSA-vrhj-mrvh-x542",
"modified": "2022-05-13T01:10:04Z",
"published": "2022-05-13T01:10:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-10819"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/vu/JVNVU91587298/index.html"
},
{
"type": "WEB",
"url": "http://www.intercom.co.jp/information/2017/0801.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VRP5-7HMM-J77F
Vulnerability from github – Published: 2022-05-14 02:02 – Updated: 2022-05-14 02:02
VLAI
Details
Adobe Creative Cloud Desktop Application before 4.6.1 has an improper certificate validation vulnerability. Successful exploitation could lead to privilege escalation.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2018-12829"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-08-29T13:29:00Z",
"severity": "CRITICAL"
},
"details": "Adobe Creative Cloud Desktop Application before 4.6.1 has an improper certificate validation vulnerability. Successful exploitation could lead to privilege escalation.",
"id": "GHSA-vrp5-7hmm-j77f",
"modified": "2022-05-14T02:02:08Z",
"published": "2022-05-14T02:02:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12829"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/creative-cloud/apsb18-32.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105158"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1041600"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VV4W-99G8-93PP
Vulnerability from github – Published: 2026-04-14 09:30 – Updated: 2026-04-14 09:30
VLAI
Details
A vulnerability has been identified in Siemens Software Center (All versions < V3.5.8.2), Simcenter 3D (All versions < V2506.6000), Simcenter Femap (All versions < V2506.0002), Simcenter STAR-CCM+ (All versions < V2602), Solid Edge SE2025 (All versions < V225.0 Update 13), Solid Edge SE2026 (All versions < V226.0 Update 04), Tecnomatix Plant Simulation (All versions < V2504.0008). Affected applications do not properly validate client certificates to connect to Analytics Service endpoint. This could allow an unauthenticated remote attacker to perform man in the middle attacks.
Severity
{
"affected": [],
"aliases": [
"CVE-2025-40745"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-14T09:16:34Z",
"severity": "MODERATE"
},
"details": "A vulnerability has been identified in Siemens Software Center (All versions \u003c V3.5.8.2), Simcenter 3D (All versions \u003c V2506.6000), Simcenter Femap (All versions \u003c V2506.0002), Simcenter STAR-CCM+ (All versions \u003c V2602), Solid Edge SE2025 (All versions \u003c V225.0 Update 13), Solid Edge SE2026 (All versions \u003c V226.0 Update 04), Tecnomatix Plant Simulation (All versions \u003c V2504.0008). Affected applications do not properly validate client certificates to connect to Analytics Service endpoint. This could allow an unauthenticated remote attacker to perform man in the middle attacks.",
"id": "GHSA-vv4w-99g8-93pp",
"modified": "2026-04-14T09:30:44Z",
"published": "2026-04-14T09:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40745"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-981622.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/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-VVP7-QF5P-R677
Vulnerability from github – Published: 2024-02-16 00:30 – Updated: 2024-08-01 15:31
VLAI
Details
In ca-certificates, there is a possible way to read encrypted TLS data due to untrusted cryptographic certificates. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2023-40104"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-15T23:15:08Z",
"severity": "HIGH"
},
"details": "In ca-certificates, there is a possible way to read encrypted TLS data due to untrusted cryptographic certificates. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-vvp7-qf5p-r677",
"modified": "2024-08-01T15:31:26Z",
"published": "2024-02-16T00:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40104"
},
{
"type": "WEB",
"url": "https://android.googlesource.com/platform/system/ca-certificates/+/91204b9fdbd77b3f27f94b73868607b2dccbfdad"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2023-11-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VVR9-CXF3-4GVJ
Vulnerability from github – Published: 2022-04-23 00:40 – Updated: 2024-04-03 23:52
VLAI
Details
vdsm: certificate generation upon node creation allowing vdsm to start and serve requests from anyone who has a matching key (and certificate)
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2012-5518"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-11-25T14:15:00Z",
"severity": "HIGH"
},
"details": "vdsm: certificate generation upon node creation allowing vdsm to start and serve requests from anyone who has a matching key (and certificate)",
"id": "GHSA-vvr9-cxf3-4gvj",
"modified": "2024-04-03T23:52:11Z",
"published": "2022-04-23T00:40:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2012-5518"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/cve-2012-5518"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-5518"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2012/11/11/3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VW5V-4F2Q-W9XF
Vulnerability from github – Published: 2026-03-03 20:08 – Updated: 2026-03-25 18:29
VLAI
Summary
AWS-LC has PKCS7_verify Certificate Chain Validation Bypass
Details
Summary
AWS-LC is an open-source, general-purpose cryptographic library.
Impact
Improper certificate validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass certificate chain verification when processing PKCS7 objects with multiple signers, except the final signer.
Customers of AWS services do not need to take action. aws-lc-sys contains code from AWS-LC. Applications using aws-lc-sys should upgrade to the most recent release of aws-lc-sys.
Impacted versions:
aws-lc-sys versions: >= 0.24.0, < 0.38.0
Patches
The patch is included in v0.38.0
Workarounds
There is no workaround. Applications using aws-lc-sys should upgrade to the most recent release of aws-lc-sys.
Resources
If there are any questions or comments about this advisory, contact [AWS/Amazon] Security via the vulnerability reporting page or directly via email to aws-security@amazon.com. Please do not create a public GitHub issue.
Acknowledgement
AWS-LC would like to thank Joshua Rogers (https://joshua.hu/) for collaborating on this issue through the coordinated vulnerability disclosure process.
Severity
{
"affected": [
{
"package": {
"ecosystem": "crates.io",
"name": "aws-lc-sys"
},
"ranges": [
{
"events": [
{
"introduced": "0.24.0"
},
{
"fixed": "0.38.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-03T20:08:24Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "### Summary\nAWS-LC is an open-source, general-purpose cryptographic library.\n\n### Impact\nImproper certificate validation in PKCS7_verify() in AWS-LC allows an unauthenticated user to bypass certificate chain verification when processing PKCS7 objects with multiple signers, except the final signer.\n\nCustomers of AWS services do not need to take action. aws-lc-sys contains code from AWS-LC. Applications using aws-lc-sys should upgrade to the most recent release of aws-lc-sys.\n\n#### Impacted versions: \naws-lc-sys versions: \u003e= 0.24.0, \u003c 0.38.0\n\n### Patches\nThe patch is included in v0.38.0\n\n### Workarounds\nThere is no workaround. Applications using aws-lc-sys should upgrade to the most recent release of aws-lc-sys.\n\n### Resources\nIf there are any questions or comments about this advisory, contact [AWS/Amazon] Security via the [vulnerability reporting page](https://aws.amazon.com/security/vulnerability-reporting) or directly via email to [aws-security@amazon.com](mailto:aws-security@amazon.com). Please do not create a public GitHub issue.\n\n### Acknowledgement\nAWS-LC would like to thank Joshua Rogers (https://joshua.hu/) for collaborating on this issue through the coordinated vulnerability disclosure process.",
"id": "GHSA-vw5v-4f2q-w9xf",
"modified": "2026-03-25T18:29:18Z",
"published": "2026-03-03T20:08:24Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/aws/aws-lc-rs/security/advisories/GHSA-vw5v-4f2q-w9xf"
},
{
"type": "WEB",
"url": "https://github.com/aws/aws-lc/security/advisories/GHSA-cfwj-9wp5-wqvp"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3336"
},
{
"type": "WEB",
"url": "https://aws.amazon.com/security/security-bulletins/2026-005-AWS"
},
{
"type": "PACKAGE",
"url": "https://github.com/aws/aws-lc-rs"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2026-0046.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "AWS-LC has PKCS7_verify Certificate Chain Validation Bypass"
}
GHSA-VW83-PRMH-H2QC
Vulnerability from github – Published: 2026-05-26 18:31 – Updated: 2026-05-26 21:31
VLAI
Details
FastNetMon Community Edition through 1.2.9 does not verify TLS certificates on outbound HTTPS connections. The execute_web_request_secure() function in src/fast_library.cpp creates a boost::asio::ssl::context with tls_client mode and calls set_default_verify_paths() to load CA certificates, but never calls set_verify_mode(boost::asio::ssl::verify_peer). Without this call, OpenSSL performs the TLS handshake without validating the server's certificate chain, making all HTTPS connections vulnerable to man-in-the-middle attacks. This function is used for telemetry reporting to community-stats.fastnetmon.com, which sends system information including CPU model, kernel version, traffic statistics, and software configuration. An attacker can intercept and modify this data or redirect it to a malicious server.
Severity
7.4 (High)
{
"affected": [],
"aliases": [
"CVE-2026-48697"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-26T17:16:53Z",
"severity": "HIGH"
},
"details": "FastNetMon Community Edition through 1.2.9 does not verify TLS certificates on outbound HTTPS connections. The execute_web_request_secure() function in src/fast_library.cpp creates a boost::asio::ssl::context with tls_client mode and calls set_default_verify_paths() to load CA certificates, but never calls set_verify_mode(boost::asio::ssl::verify_peer). Without this call, OpenSSL performs the TLS handshake without validating the server\u0027s certificate chain, making all HTTPS connections vulnerable to man-in-the-middle attacks. This function is used for telemetry reporting to community-stats.fastnetmon.com, which sends system information including CPU model, kernel version, traffic statistics, and software configuration. An attacker can intercept and modify this data or redirect it to a malicious server.",
"id": "GHSA-vw83-prmh-h2qc",
"modified": "2026-05-26T21:31:57Z",
"published": "2026-05-26T18:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48697"
},
{
"type": "WEB",
"url": "https://github.com/pavel-odintsov/fastnetmon"
},
{
"type": "WEB",
"url": "https://github.com/pavel-odintsov/fastnetmon/blob/master/src/fast_library.cpp"
},
{
"type": "WEB",
"url": "https://lorikeetsecurity.com/blog/fastnetmon-cve-2026-48697-missing-tls-validation"
}
],
"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"
}
]
}
GHSA-VWF6-H3R8-8JFJ
Vulnerability from github – Published: 2026-03-11 09:31 – Updated: 2026-03-13 15:31
VLAI
Details
An improper certificate validation vulnerability has been reported to affect Video Station. If an attacker gains local network access who have also gained an administrator account, they can then exploit the vulnerability to compromise the security of the system.
We have already fixed the vulnerability in the following version: Video Station 5.8.2 and later
Severity
{
"affected": [],
"aliases": [
"CVE-2024-14024"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-11T08:16:01Z",
"severity": "LOW"
},
"details": "An improper certificate validation vulnerability has been reported to affect Video Station. If an attacker gains local network access who have also gained an administrator account, they can then exploit the vulnerability to compromise the security of the system.\n\nWe have already fixed the vulnerability in the following version:\nVideo Station 5.8.2 and later",
"id": "GHSA-vwf6-h3r8-8jfj",
"modified": "2026-03-13T15:31:33Z",
"published": "2026-03-11T09:31:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-14024"
},
{
"type": "WEB",
"url": "https://www.qnap.com/en/security-advisory/qsa-24-24"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:P/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L/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:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-VWMQ-9GJC-2JJJ
Vulnerability from github – Published: 2022-04-21 00:00 – Updated: 2022-05-01 00:00
VLAI
Details
Certificate.Verify in crypto/x509 in Go 1.18.x before 1.18.1 can be caused to panic on macOS when presented with certain malformed certificates. This allows a remote TLS server to cause a TLS client to panic.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2022-27536"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-20T10:15:00Z",
"severity": "HIGH"
},
"details": "Certificate.Verify in crypto/x509 in Go 1.18.x before 1.18.1 can be caused to panic on macOS when presented with certain malformed certificates. This allows a remote TLS server to cause a TLS client to panic.",
"id": "GHSA-vwmq-9gjc-2jjj",
"modified": "2022-05-01T00:00:38Z",
"published": "2022-04-21T00:00:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27536"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce"
},
{
"type": "WEB",
"url": "https://groups.google.com/g/golang-announce/c/oecdBNLOml8"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-VWQQ-5VRC-XW9H
Vulnerability from github – Published: 2020-06-05 14:15 – Updated: 2026-06-09 10:30
VLAI
Summary
Improper validation of certificate with host mismatch in Apache Log4j SMTP appender
Details
Improper validation of certificate with host mismatch in Apache Log4j SMTP appender prior to version 2.13.2. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender.
Severity
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.logging.log4j:log4j"
},
"ranges": [
{
"events": [
{
"introduced": "2.13.0"
},
{
"fixed": "2.13.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.logging.log4j:log4j-core"
},
"ranges": [
{
"events": [
{
"introduced": "2.13.0"
},
{
"fixed": "2.13.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.logging.log4j:log4j"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.12.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.logging.log4j:log4j"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.3.2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.logging.log4j:log4j-core"
},
"ranges": [
{
"events": [
{
"introduced": "2.4.0"
},
{
"fixed": "2.12.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.apache.logging.log4j:log4j-core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.3.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2020-9488"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-04T19:29:20Z",
"nvd_published_at": "2020-04-27T16:15:00Z",
"severity": "LOW"
},
"details": "Improper validation of certificate with host mismatch in Apache Log4j SMTP appender prior to version 2.13.2. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender.",
"id": "GHSA-vwqq-5vrc-xw9h",
"modified": "2026-06-09T10:30:05Z",
"published": "2020-06-05T14:15:51Z",
"references": [
{
"type": "ADVISORY",
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],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Improper validation of certificate with host mismatch in Apache Log4j SMTP appender"
}
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.