CVE-2020-29457

View on CVE.org

Published Feb 16, 2021 CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed

Description

A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow a rogue application to establish a secure connection.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-2369	A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow a rogue application to establish a secure connection.
Github GHSA	GHSA-mjww-934m-h4jw	Improper Certificate Validation in OPCFoundation.NetStandard.Opc.Ua.Core

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.315% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/OPCFoundation/UA-.NETStandard
https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-29457.pdf
https://www.nuget.org/packages/OPCFoundation.NetStandard.Opc.Ua/

History

No history.

Subscriptions

Opcfoundation Ua-.netstandard

Weaknesses

CWE-295

Sources

CVE record Updated: Aug 4, 2024, 4:55 PM

Status: PUBLISHED
Assigner: mitre
Published: Feb 16, 2021, 7:19 PM
Updated: Aug 4, 2024, 4:55 PM
Reserved: Dec 2, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:11 AM

Status: Modified
Published: Feb 16, 2021, 8:15 PM
Modified: Jun 17, 2026, 3:11 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow a rogue application to establish a secure connection."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-03-12T21:06:08.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/OPCFoundation/UA-.NETStandard"}, {"tags": ["x_refsource_MISC"], "url": "https://www.nuget.org/packages/OPCFoundation.NetStandard.Opc.Ua/"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-29457.pdf"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-29457", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow a rogue application to establish a secure connection."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/OPCFoundation/UA-.NETStandard", "refsource": "MISC", "url": "https://github.com/OPCFoundation/UA-.NETStandard"}, {"name": "https://www.nuget.org/packages/OPCFoundation.NetStandard.Opc.Ua/", "refsource": "MISC", "url": "https://www.nuget.org/packages/OPCFoundation.NetStandard.Opc.Ua/"}, {"name": "https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-29457.pdf", "refsource": "CONFIRM", "url": "https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-29457.pdf"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T16:55:09.676Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/OPCFoundation/UA-.NETStandard"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.nuget.org/packages/OPCFoundation.NetStandard.Opc.Ua/"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-29457.pdf"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-29457", "datePublished": "2021-02-16T19:19:19.000Z", "dateReserved": "2020-12-02T00:00:00.000Z", "dateUpdated": "2024-08-04T16:55:09.676Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:*", "matchCriteriaId": "CECF1241-7BB1-4E10-9DBB-36A29C6A463B", "versionEndExcluding": "1.4.365.10", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow a rogue application to establish a secure connection."}, {"lang": "es", "value": "Una vulnerabilidad de Elevaci\u00f3n de Privilegios en OPC UA .NET Standard Stack versi\u00f3n 1.4.363.107 podr\u00eda permitir a una aplicaci\u00f3n fraudulenta establecer una conexi\u00f3n segura."}], "id": "CVE-2020-29457", "lastModified": "2026-06-17T03:11:18.537", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-02-16T20:15:15.707", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/OPCFoundation/UA-.NETStandard"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-29457.pdf"}, {"source": "cve@mitre.org", "tags": ["Product", "Third Party Advisory"], "url": "https://www.nuget.org/packages/OPCFoundation.NetStandard.Opc.Ua/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/OPCFoundation/UA-.NETStandard"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-29457.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Third Party Advisory"], "url": "https://www.nuget.org/packages/OPCFoundation.NetStandard.Opc.Ua/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-295"}], "source": "nvd@nist.gov", "type": "Primary"}]}