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TI-2023-17731 Aliases CVE-2023-35619GHSA-xxq5-c27j-953j

Microsoft Outlook for Mac Spoofing Vulnerability

Priority LOW 26CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

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

Summary

Microsoft Outlook for Mac Spoofing Vulnerability

Why it matters now

EPSS 0.01186 68th percentileScored 2026-11-07
Fix Fixed Microsoft Office LTSC for Mac 2021 (Microsoft): 16.80.23121017

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft Office LTSC for Mac 202116.0.1 to before 16.80.2312101716.80.23121017Patch availableCNA
  • Microsoft Office LTSC for Mac 2021 VendorMicrosoft Affected 16.0.1 to before 16.80.23121017 Fixed in 16.80.23121017 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*2021VulnerableMicrosoft
  • cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:* Versions 2021 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft Office LTSC for Mac 2021 (Microsoft) Fixed in 16.80.23121017

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Spoofing
Exploited
No
Publicly disclosed
—
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Microsoft Office LTSC for Mac 2021Fixed 16.80.23121017 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-35619
  2. 2026-10-03 Alias added: GHSA-xxq5-c27j-953j

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-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
  • TI-2024-25505 Microsoft Publisher Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 7.3
See all 365 →

Sources

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