MSRC_CVE-2026-42832

Vulnerability from csaf_microsoft - Published: 2026-05-12 07:00 - Updated: 2026-05-12 07:00
Summary
Microsoft Office Spoofing Vulnerability
Severity
Important
Notes
Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
Customer Action: Required. The vulnerability documented by this CVE requires customer action to resolve.
CVE-2026-42832
7.7 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C
CWE-284 - Improper Access Control
Affected products
Product Identifier Version Remediation
Microsoft Word for Android 16.0.19822.20190
Microsoft Word for Android
 16.0.19822.20190
Microsoft Office LTSC for Mac 2021 16.109.26051019
Microsoft Office LTSC for Mac 2021
 16.109.26051019
Microsoft Excel for Android 16.0.19822.20190
Microsoft Excel for Android
 16.0.19822.20190
Microsoft Office LTSC for Mac 2024 16.109.26051019
Microsoft Office LTSC for Mac 2024
 16.109.26051019
Product Identifier Version Remediation
Microsoft Office LTSC for Mac 2024 <16.109.26051019
Microsoft Office LTSC for Mac 2024
 <16.109.26051019
Vendor Fix fix
Microsoft Excel for Android <16.0.19822.20190
Microsoft Excel for Android
 <16.0.19822.20190
Vendor Fix fix
Microsoft Office LTSC for Mac 2021 <16.109.26051019
Microsoft Office LTSC for Mac 2021
 <16.109.26051019
Vendor Fix fix
Microsoft Word for Android <16.0.19822.20190
Microsoft Word for Android
 <16.0.19822.20190
Vendor Fix fix
Threats
Impact Spoofing
Exploit Status Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely
References
Acknowledgments
<a href="https://twitter.com/yanir_">Yanir Tsarimi</a>
To clipboard 

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  "document": {
    "acknowledgments": [
      {
        "names": [
          "\u003ca href=\"https://twitter.com/yanir_\"\u003eYanir Tsarimi\u003c/a\u003e"
        ]
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        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
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        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
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    "publisher": {
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      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
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    "references": [
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      },
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      },
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    "title": "Microsoft Office Spoofing Vulnerability",
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      "revision_history": [
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          "legacy_version": "1",
          "number": "1",
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      "status": "final",
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  "vulnerabilities": [
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      "cve": "CVE-2026-42832",
      "cwe": {
        "id": "CWE-284",
        "name": "Improper Access Control"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "No, the Preview Pane is not an attack vector.",
          "title": "Is the Preview Pane an attack vector for this vulnerability?"
        }
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        },
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          "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-42832.json"
        }
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      "scores": [
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            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.7,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C",
            "version": "3.1"
          },
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          "details": "Spoofing"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely"
        }
      ],
      "title": "Microsoft Office Spoofing Vulnerability"
    }
  ]
}



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