CVE-2025-21386
Microsoft Excel Remote Code Execution Vulnerability
HIGH
7.8
CVSS Score
Published: February 11, 2025 at 05:58 PM UTC
Updated: June 17, 2026 at 08:43 AM UTC
8 products affected across 1 vendorOffice365 AppsOffice 2021
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Severity
HIGH7.8
Exploit prediction
EPSS 0.8%
SSVC
No known exploit
Description
Microsoft Excel Remote Code Execution Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
16.0.1 ≤ v < https://aka.ms/OfficeSecurityReleases16.0.1
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.5487.1000, so it looks safe — our inference, not a vendor statement
19.0.0 ≤ v < https://aka.ms/OfficeSecurityReleases19.0.0
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
16.0.0.0 ≤ v < 16.0.10416.2005816.0.1 ≤ v < 16.94.2502092716.0.1 ≤ v < https://aka.ms/OfficeSecurityReleases16.0.1
Affected range stops below 16.0.10416.20058, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.94.25020927, so it looks safe — our inference, not a vendor statement
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.94.25020927, so it looks safe — our inference, not a vendor statement
Affected range stops below https://aka.ms/OfficeSecurityReleases, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.0.10416.20058, 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-2025-21386SSVC — 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-416NVD-CWE-noinfo
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