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TI-2021-18188 Aliases CVE-2021-41368GHSA-vjrr-qp7x-m79f

Microsoft Access Remote Code Execution Vulnerability

Priority MEDIUM 42Published · Updated

Key facts

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

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

Summary

Microsoft Access Remote Code Execution Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04951 92nd percentileScored 2026-11-07
Fix Fixed Microsoft: 2 updates

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 https://aka.ms/OfficeSecurityReleaseshttps://aka.ms/OfficeSecurityReleasesPatch availableCNA
MicrosoftMicrosoft Office 2013 Service Pack 115.0.0 to before 15.0.5397.100115.0.5397.1001Patch availableCNA
MicrosoftMicrosoft Office 201616.0.0 to before 16.0.5239.100116.0.5239.1001Patch availableCNA
MicrosoftMicrosoft Office 201919.0.0 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
  • 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 2013 Service Pack 1 VendorMicrosoft Affected 15.0.0 to before 15.0.5397.1001 Fixed in 15.0.5397.1001 Patch available CNA
  • Microsoft Office 2016 VendorMicrosoft Affected 16.0.0 to before 16.0.5239.1001 Fixed in 16.0.5239.1001 Patch available CNA
  • 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 LTSC 2021 VendorMicrosoft Affected 16.0.1 to before https://aka.ms/OfficeSecurityReleases Fixed in https://aka.ms/OfficeSecurityReleases Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*not specified by NVDVulnerableMicrosoft
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:365_apps:-:*:*:*:enterprise:*:*:* Versions not specified by NVD 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

Remediation

Microsoft 2 updates

  • Security Update
    • Microsoft Office 2013 RT Service Pack 1 15.0.5397.1001
    • Microsoft Office 2013 Service Pack 1 (32-bit editions) 15.0.5397.1001
    • Microsoft Office 2013 Service Pack 1 (64-bit editions) 15.0.5397.1001
  • Security Update
    • Microsoft Office 2016 (32-bit edition) 16.0.5239.1001
    • Microsoft Office 2016 (64-bit edition) 16.0.5239.1001

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Remote Code Execution
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft 365 Apps for Enterprise for 32-bit SystemsFixed https · //aka.ms/OfficeSecurityReleases
Microsoft 365 Apps for Enterprise for 64-bit SystemsFixed https · //aka.ms/OfficeSecurityReleases
Microsoft Office 2019 for 32-bit editionsFixed https · //aka.ms/OfficeSecurityReleases
Microsoft Office 2019 for 64-bit editionsFixed https · //aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2021 for 32-bit editionsFixed https · //aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2021 for 64-bit editionsFixed https · //aka.ms/OfficeSecurityReleases

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-41368
  2. 2026-10-03 Alias added: GHSA-vjrr-qp7x-m79f

References

  • 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