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TI-2026-51187 Aliases CVE-2026-72976GHSA-v3wm-367v-9v8v

Microsoft Office Word Information Disclosure Vulnerability

Priority LOW 23CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.

Summary

Out-of-bounds read in Microsoft Office Word allows an authorized attacker to disclose information locally.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00512 43rd percentileScored 2026-11-07
Fix Fixed Microsoft: 1 update

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft 365 Apps for Enterprise16.0.1 to before 16.0.20326.2013816.0.20326.20138Patch availableCNA
MicrosoftMicrosoft Office 201919.0.0 to before 16.0.10417.2020716.0.10417.20207Patch availableCNA
MicrosoftMicrosoft Office 365 for Mac1.0.0 to before 16.113.2609143316.113.26091433Patch availableCNA
MicrosoftMicrosoft Office LTSC 202116.0.1 to before 16.0.14334.2090616.0.14334.20906Patch availableCNA
MicrosoftMicrosoft Office LTSC 202416.0.0 to before 16.0.17932.2097616.0.17932.20976Patch availableCNA
MicrosoftMicrosoft Office LTSC for Mac 202116.0.1 to before 16.113.2609143316.113.26091433Patch availableCNA
MicrosoftMicrosoft Office LTSC for Mac 202416.0.0 to before 16.113.2609143316.113.26091433Patch availableCNA
MicrosoftMicrosoft Word 201616.0.1 to before 16.0.5569.100016.0.5569.1000Patch availableCNA
  • Microsoft 365 Apps for Enterprise VendorMicrosoft Affected 16.0.1 to before 16.0.20326.20138 Fixed in 16.0.20326.20138 Patch available CNA
  • Microsoft Office 2019 VendorMicrosoft Affected 19.0.0 to before 16.0.10417.20207 Fixed in 16.0.10417.20207 Patch available CNA
  • Microsoft Office 365 for Mac VendorMicrosoft Affected 1.0.0 to before 16.113.26091433 Fixed in 16.113.26091433 Patch available CNA
  • Microsoft Office LTSC 2021 VendorMicrosoft Affected 16.0.1 to before 16.0.14334.20906 Fixed in 16.0.14334.20906 Patch available CNA
  • Microsoft Office LTSC 2024 VendorMicrosoft Affected 16.0.0 to before 16.0.17932.20976 Fixed in 16.0.17932.20976 Patch available CNA
  • Microsoft Office LTSC for Mac 2021 VendorMicrosoft Affected 16.0.1 to before 16.113.26091433 Fixed in 16.113.26091433 Patch available CNA
  • Microsoft Office LTSC for Mac 2024 VendorMicrosoft Affected 16.0.0 to before 16.113.26091433 Fixed in 16.113.26091433 Patch available CNA
  • Microsoft Word 2016 VendorMicrosoft Affected 16.0.1 to before 16.0.5569.1000 Fixed in 16.0.5569.1000 Patch available CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:microsoft_365:-:*:*:*:*:macos:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x86:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:macos:-:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:microsoft_365:-:*:*:*:*:macos:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x64:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_2019:-:*:*:*:*:*:x86:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:macos:-:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:* Versions not specified by NVD Vulnerable ·Microsoft
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:macos:-:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x64:*2016VulnerableMicrosoft
cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x86:*2016VulnerableMicrosoft
  • cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:macos:-:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x64:* Versions 2016 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x86:* Versions 2016 Vulnerable ·Microsoft

Remediation

Microsoft 1 update

  • KB5002923
    Security Update
    • Microsoft Office 2016 (32-bit edition) 16.0.5569.1002
    • Microsoft Office 2016 (64-bit edition) 16.0.5569.1002
    • Microsoft Word 2016 (32-bit edition) 16.0.5569.1002, 16.0.5569.1000
    • Microsoft Word 2016 (64-bit edition) 16.0.5569.1002, 16.0.5569.1000

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Information Disclosure
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft 365 Apps for Enterprise for 32-bit SystemsFixed 16.0.20326.20138 · Security Update
Microsoft 365 Apps for Enterprise for 64-bit SystemsFixed 16.0.20326.20138 · Security Update
Microsoft Office 2019 for 32-bit editionsFixed 16.0.10417.20207 · Security Update
Microsoft Office 2019 for 64-bit editionsFixed 16.0.10417.20207 · Security Update
Microsoft Office 365 for MacFixed 16.113.26091433 · Security Update
Microsoft Office LTSC 2021 for 32-bit editionsFixed 16.0.14334.20906 · Security Update
Microsoft Office LTSC 2021 for 64-bit editionsFixed 16.0.14334.20906 · Security Update
Microsoft Office LTSC 2024 for 32-bit editionsFixed 16.0.17932.20976 · Security Update
Microsoft Office LTSC 2024 for 64-bit editionsFixed 16.0.17932.20976 · Security Update
Microsoft Office LTSC for Mac 2021Fixed 16.113.26091433 · Security Update
Microsoft Office LTSC for Mac 2024Fixed 16.113.26091433 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-72976
  2. 2026-10-03 Alias added: GHSA-v3wm-367v-9v8v

References

Patch 1

  • TI-2024-14173 Microsoft Outlook Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-09240 Microsoft Outlook Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-25471 Microsoft Project Remote Code Execution Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2023-17652 Microsoft Outlook Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2026-17368 Microsoft Word Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 7.8
  • TI-2026-17363 Microsoft Office Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 7.8
See all 935 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences