CVE-2025-21402
Microsoft Office OneNote Remote Code Execution Vulnerability
HIGH
7.8
CVSS Score
Published: January 14, 2025 at 06:04 PM UTC
Updated: June 17, 2026 at 08:43 AM UTC
6 products affected across 1 vendorOfficeOffice Long Term Servicing ChannelOneNote
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Severity
HIGH7.8
Exploit prediction
EPSS 0.7%
SSVC
No known exploit
Description
Microsoft Office OneNote Remote Code Execution Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
1.0.0 ≤ v < 16.92.241207311.0.0
Affected range stops below 16.92.24120731, so it looks safe — our inference, not a vendor statement
1.0.0 ≤ v < 16.92.24120731
Affected range stops below 16.92.24120731, so it looks safe — our inference, not a vendor statement
16.0.1 ≤ v < 16.93.2501121216.0.1
Affected range stops below 16.93.25011212, so it looks safe — our inference, not a vendor statement
16.0.0 ≤ v < 16.93.2501121216.0.0
Affected range stops below 16.93.25011212, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21402SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.8HIGHmicrosoft
Vector?
Quick Info
StatusANALYZED
CWE
CWE-641NVD-CWE-noinfo
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