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TI-2021-17519 Aliases CVE-2021-40472GHSA-5rhp-mqph-jm87

Microsoft Excel Information Disclosure Vulnerability

Priority LOW 26Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Microsoft Excel Information Disclosure Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00732 54th percentileScored 2026-11-07
Fix Fixed Microsoft Office 2019 (Microsoft): https://aka.ms/OfficeSecurityReleasesMicrosoft Office Online Server (Microsoft): 16.0.10379.20000+7 more products

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 Office 201919.0.0 to before https://aka.ms/OfficeSecurityReleaseshttps://aka.ms/OfficeSecurityReleasesPatch availableCNA
MicrosoftMicrosoft Office Online Server16.0.1 to before 16.0.10379.2000016.0.10379.20000Patch availableCNA
MicrosoftMicrosoft 365 Apps for Enterprise16.0.1 to before https://aka.ms/OfficeSecurityReleaseshttps://aka.ms/OfficeSecurityReleasesPatch availableCNA
MicrosoftMicrosoft Office LTSC 202116.0.1 to before https://aka.ms/OfficeSecurityReleaseshttps://aka.ms/OfficeSecurityReleasesPatch availableCNA
MicrosoftMicrosoft Excel 201616.0.0.0 to before 16.0.5227.100016.0.5227.1000Patch availableCNA
MicrosoftMicrosoft Office 201616.0.0 to before 16.0.5227.100016.0.5227.1000Patch availableCNA
MicrosoftMicrosoft Excel 2013 Service Pack 115.0.0.0 to before 15.0.5389.100015.0.5389.1000Patch availableCNA
MicrosoftMicrosoft Office 2013 Service Pack 115.0.0 to before 15.0.5389.100015.0.5389.1000Patch availableCNA
MicrosoftMicrosoft Office Web Apps Server 2013 Service Pack 115.0.1 to before 15.0.5389.100015.0.5389.1000Patch availableCNA
  • Microsoft Office 2019 VendorMicrosoft Affected 19.0.0 to before https://aka.ms/OfficeSecurityReleases Fixed in https://aka.ms/OfficeSecurityReleases Patch available CNA
  • Microsoft Office Online Server VendorMicrosoft Affected 16.0.1 to before 16.0.10379.20000 Fixed in 16.0.10379.20000 Patch available CNA
  • Microsoft 365 Apps for Enterprise VendorMicrosoft Affected 16.0.1 to before https://aka.ms/OfficeSecurityReleases Fixed in https://aka.ms/OfficeSecurityReleases Patch available CNA
  • Microsoft Office LTSC 2021 VendorMicrosoft Affected 16.0.1 to before https://aka.ms/OfficeSecurityReleases Fixed in https://aka.ms/OfficeSecurityReleases Patch available CNA
  • Microsoft Excel 2016 VendorMicrosoft Affected 16.0.0.0 to before 16.0.5227.1000 Fixed in 16.0.5227.1000 Patch available CNA
  • Microsoft Office 2016 VendorMicrosoft Affected 16.0.0 to before 16.0.5227.1000 Fixed in 16.0.5227.1000 Patch available CNA
  • Microsoft Excel 2013 Service Pack 1 VendorMicrosoft Affected 15.0.0.0 to before 15.0.5389.1000 Fixed in 15.0.5389.1000 Patch available CNA
  • Microsoft Office 2013 Service Pack 1 VendorMicrosoft Affected 15.0.0 to before 15.0.5389.1000 Fixed in 15.0.5389.1000 Patch available CNA
  • Microsoft Office Web Apps Server 2013 Service Pack 1 VendorMicrosoft Affected 15.0.1 to before 15.0.5389.1000 Fixed in 15.0.5389.1000 Patch available CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:*:*2016VulnerableMicrosoft
cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:*2013 sp1VulnerableMicrosoft
cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:*2013 sp1VulnerableMicrosoft
cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:*:*2016VulnerableMicrosoft
cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*2019VulnerableMicrosoft
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:*:*2021VulnerableMicrosoft
cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1:*:*:*:*:*:*2013 sp1VulnerableMicrosoft
  • cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:* Versions 2019 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:*:*:* Versions 2021 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft Office 2019 (Microsoft) Fixed in https://aka.ms/OfficeSecurityReleases
  • Fix · CNA Microsoft Office Online Server (Microsoft) Fixed in 16.0.10379.20000
  • Fix · CNA Microsoft 365 Apps for Enterprise (Microsoft) Fixed in https://aka.ms/OfficeSecurityReleases
  • Fix · CNA Microsoft Office LTSC 2021 (Microsoft) Fixed in https://aka.ms/OfficeSecurityReleases
  • Fix · CNA Microsoft Excel 2016 (Microsoft) Fixed in 16.0.5227.1000
  • Fix · CNA Microsoft Office 2016 (Microsoft) Fixed in 16.0.5227.1000
  • Fix · CNA Microsoft Excel 2013 Service Pack 1 (Microsoft) Fixed in 15.0.5389.1000
  • Fix · CNA Microsoft Office 2013 Service Pack 1 (Microsoft) Fixed in 15.0.5389.1000
  • Fix · CNA Microsoft Office Web Apps Server 2013 Service Pack 1 (Microsoft) Fixed in 15.0.5389.1000

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-40472
  2. 2026-10-03 Alias added: GHSA-5rhp-mqph-jm87

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