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TI-2025-15367 Aliases CVE-2025-21402GHSA-hf5r-fmgp-v332

Microsoft Office OneNote Remote Code Execution Vulnerability

Priority LOW 37CWE-641Published · 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 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

Microsoft Office OneNote Remote Code Execution Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00679 52nd percentileScored 2026-11-07
Fix Fixed Microsoft Office LTSC for Mac 2021 (Microsoft): 16.93.25011212Microsoft Office LTSC for Mac 2024 (Microsoft): 16.93.25011212+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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 LTSC for Mac 202116.0.1 to before 16.93.2501121216.93.25011212Patch availableCNA
MicrosoftMicrosoft Office LTSC for Mac 202416.0.0 to before 16.93.2501121216.93.25011212Patch availableCNA
MicrosoftMicrosoft OneNote1.0.0 to before 16.92.2412073116.92.24120731Patch availableCNA
  • Microsoft Office LTSC for Mac 2021 VendorMicrosoft Affected 16.0.1 to before 16.93.25011212 Fixed in 16.93.25011212 Patch available CNA
  • Microsoft Office LTSC for Mac 2024 VendorMicrosoft Affected 16.0.0 to before 16.93.25011212 Fixed in 16.93.25011212 Patch available CNA
  • Microsoft OneNote VendorMicrosoft Affected 1.0.0 to before 16.92.24120731 Fixed in 16.92.24120731 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:office:2024:*:*:*:ltsc:macos:*:*2024VulnerableMicrosoft
cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*2021VulnerableMicrosoft
cpe:2.3:a:microsoft:onenote:-:*:*:*:*:macos:*:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:office:2024:*:*:*:ltsc:macos:*:* Versions 2024 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:* Versions 2021 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:onenote:-:*:*:*:*:macos:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft Office LTSC for Mac 2021 (Microsoft) Fixed in 16.93.25011212
  • Fix · CNA Microsoft Office LTSC for Mac 2024 (Microsoft) Fixed in 16.93.25011212
  • Fix · CNA Microsoft OneNote (Microsoft) Fixed in 16.92.24120731

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 Office LTSC for Mac 2021Fixed 16.93.25011212 · Security Update
Microsoft Office LTSC for Mac 2024Fixed 16.93.25011212 · Security Update
Microsoft OneNote for MacFixed 16.92.24120731 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-21402
  2. 2026-10-03 Alias added: GHSA-hf5r-fmgp-v332
  3. 2026-10-16 EPSS moved to the 50th–90th percentile

References

Patch 1

  • TI-2023-09240 Microsoft Outlook Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-01013 A remote code execution vulnerability exists in Microsoft Excel software when the… KEVCVSS 3.1HIGH 8.8
  • TI-2019-00335 Command injection in Microsoft Office KEVCVSS 3.1HIGH 8.8
  • TI-2018-00739 Out-of-bounds write in Microsoft Equation Editor KEVCVSS 3.1HIGH 8.8
  • TI-2015-02130 Microsoft PowerPoint 2007 SP3, Word 2007 SP3, PowerPoint 2010 SP2, Word 2010 SP2… KEVCVSS 3.1HIGH 8.8
  • TI-2015-01588 Microsoft Office 2013 SP1 and 2013 RT SP1 allows remote attackers to execute arbitrary… KEVCVSS 3.1HIGH 8.8
See all 1024 →

Sources

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