CVE-2026-20943 - Vulnerability Details - OpenCVE

Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
Microsoft	Office Office 2016 Sharepoint Server Sharepoint Server 2016 Sharepoint Server 2019

No data.

No data.

No data.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20943

History

Tue, 13 Jan 2026 18:15:00 +0000

Type	Values Removed	Values Added
Description		Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally.
Title		Microsoft Office Click-To-Run Elevation of Privilege Vulnerability
First Time appeared		Microsoft Microsoft office Microsoft office 2016 Microsoft sharepoint Server Microsoft sharepoint Server 2016 Microsoft sharepoint Server 2019
Weaknesses		CWE-426
CPEs		cpe:2.3:a:microsoft:office:::Deployment_Tool:::::* cpe:2.3:a:microsoft:office_2016:::::::x86:* cpe:2.3:a:microsoft:sharepoint_server:::::subscription:::* cpe:2.3:a:microsoft:sharepoint_server_2016:::::enterprise:::* cpe:2.3:a:microsoft:sharepoint_server_2019::::::::
Vendors & Products		Microsoft Microsoft office Microsoft office 2016 Microsoft sharepoint Server Microsoft sharepoint Server 2016 Microsoft sharepoint Server 2019
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20943
Metrics		cvssV3_1 `{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-01-13T17:56:45.424Z

Updated: 2026-01-13T18:04:30.566Z

Reserved: 2025-12-04T20:04:16.338Z

Link: CVE-2026-20943

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-01-13T18:16:21.687

Modified: 2026-01-13T18:16:21.687

Link: CVE-2026-20943

Redhat

No data.

OpenCVE Enrichment

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20943", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2025-12-04T20:04:16.338Z", "datePublished": "2026-01-13T17:56:45.424Z", "dateUpdated": "2026-01-13T18:04:30.566Z"}, "containers": {"cna": {"title": "Microsoft Office Click-To-Run Elevation of Privilege Vulnerability", "datePublic": "2026-01-13T08:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*", "versionStartIncluding": "16.0.0", "versionEndExcluding": "16.0.10417.20083"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office_2016:*:*:*:*:*:*:x86:*", "versionStartIncluding": "16.0.0", "versionEndExcluding": "16.0.5535.1000"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*", "versionStartIncluding": "16.0.0", "versionEndExcluding": "16.0.5535.1001"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*", "versionStartIncluding": "16.0.0", "versionEndExcluding": "16.0.19127.20442"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:office:*:*:Deployment_Tool:*:*:*:*:*", "versionStartIncluding": "1.0", "versionEndExcluding": "16.0.19426.20170"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Microsoft SharePoint Server 2019", "platforms": ["x64-based Systems"], "versions": [{"version": "16.0.0", "lessThan": "16.0.10417.20083", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft Office 2016", "platforms": ["32-bit Systems", "x64-based Systems"], "versions": [{"version": "16.0.0", "lessThan": "16.0.5535.1000", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SharePoint Enterprise Server 2016", "platforms": ["x64-based Systems"], "versions": [{"version": "16.0.0", "lessThan": "16.0.5535.1001", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SharePoint Server Subscription Edition", "platforms": ["x64-based Systems"], "versions": [{"version": "16.0.0", "lessThan": "16.0.19127.20442", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft Office Deployment Tool", "versions": [{"version": "1.0", "lessThan": "16.0.19426.20170", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "CWE-426: Untrusted Search Path", "lang": "en-US", "type": "CWE", "cweId": "CWE-426"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-01-13T18:04:30.566Z"}, "references": [{"name": "Microsoft Office Click-To-Run Elevation of Privilege Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20943"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}}]}}}