CVE-2025-54903 Details
Description
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
A use-after-free vulnerability has been identified in Microsoft Office Excel. This vulnerability allows an unauthorized attacker to execute code locally. It affects several versions of Excel, including Excel 2016 (both 32-bit and 64-bit editions), Microsoft Office LTSC for Mac 2021 and 2024, Microsoft Office LTSC 2021 and 2024 (both 32-bit and 64-bit editions), and Microsoft 365 Apps for Enterprise (also in 32-bit and 64-bit systems)
Users can download the security update for this vulnerability through the Microsoft Update Catalog. For Microsoft Office LTSC for Mac 2021 and 2024, the security update will be released as soon as possible, and customers will be notified via a revision to this CVE information.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 9, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54903 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-416 | Use After Free | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| microsoft 365 apps | All versions |
CPE
Remediation
| |
| microsoft excel | 2016 |
CPE
Remediation
| |
| microsoft office | 2019 |
CPE
Remediation
| |
| microsoft office long term servicing channel | 2021 2024 |
CPE
Remediation
| |
| microsoft office online server | < 16.0.10417.20047 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Sep 12, 2025 | Initial Analysis | [email protected] |
| Sep 9, 2025 | New CVE Received | [email protected] |