FKIE_CVE-2026-20943

Vulnerability from fkie_nvd - Published: 2026-01-13 18:16 - Updated: 2026-01-16 16:14
Severity ?
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally.
References
secure@microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20943Vendor Advisory
Impacted products
Vendor Product Version
microsoft office 2016
microsoft office 2016
microsoft office_deployment_tool *
microsoft sharepoint_server *
microsoft sharepoint_server 2016
microsoft sharepoint_server 2019
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:x64:*",
              "matchCriteriaId": "72324216-4EB3-4243-A007-FEF3133C7DF9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:x86:*",
              "matchCriteriaId": "0FBB0E61-7997-4F26-9C07-54912D3F1C10",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_deployment_tool:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2D4CAEAF-A5AF-46D2-9A2B-8B04CC120B04",
              "versionEndExcluding": "16.0.19426.20170",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*",
              "matchCriteriaId": "FB9ECA81-C1E2-4B02-A45C-0E5664E3C9B9",
              "versionEndExcluding": "16.0.19127.20442",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "F815EF1D-7B60-47BE-9AC2-2548F99F10E4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*",
              "matchCriteriaId": "6122D014-5BF1-4AF4-8B4D-80205ED7785E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally."
    }
  ],
  "id": "CVE-2026-20943",
  "lastModified": "2026-01-16T16:14:34.970",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "secure@microsoft.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-01-13T18:16:21.687",
  "references": [
    {
      "source": "secure@microsoft.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20943"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-426"
        }
      ],
      "source": "secure@microsoft.com",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.