Patch tracker / CVE reference / CVE-2025-53739
CVE-2025-53739
CVE-2025-53739 is a high severity Microsoft vulnerability with a CVSS score of 7.8. Microsoft has shipped the fix: deploy one of the 2 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.
Risk summary
Not in the CISA KEV catalog. EPSS exploit probability <1%. CVSS 7.8 (High).
This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability.
The last of this cycle's Excel remote code execution group, affecting Office Online Server and Office 2019 both architectures. Like the others it rates High Severity at CVSS 7.8 with a 1 percent EPSS score and no known exploitation. The volume of Excel fixes this month is the real signal: the workbook parsing surface got a thorough going-over, and unpatched systems now lag a well-documented set of flaws.
Do this: Complete the Office 2019 and Office Online Server update rollout and confirm no machines remain on the prior build.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2025-53739
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2025-53739
Moderate priority: schedule it in your normal patch cycle. In Intune or Defender, confirm whether the fixing updates KB5002752, KB5002758 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.
Apply the Microsoft security updates below to fix CVE-2025-53739. Each KB page carries the Microsoft Update Catalog download, Microsoft's known issues for the update, a copy-paste PowerShell check for whether it is installed, and the Senserva AI read.
Scope and sources
- Affected products
- Fixed by the same updates
- Authoritative references
Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.