Patch tracker / CVE reference / CVE-2025-59240

CVE-2025-59240

CVE-2025-59240 is a medium severity Microsoft vulnerability with a CVSS score of 5.5. Microsoft has shipped the fix: deploy the update below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Risk summary

Medium

5.5

CVSS v3

<1%

EPSS, 30 days

Medium

Severity

Not in the CISA KEV catalog. EPSS exploit probability <1%. CVSS 5.5 (Medium).

This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability.

Senserva AI Opinion for CVE-2025-59240

This Excel information disclosure targets Office LTSC 2021 and LTSC 2024, the perpetual-license editions rather than Microsoft 365 Apps, so exposure is limited to organizations still running those standalone builds. Client-application document bugs like this typically need a user to open a crafted file, and the 1 percent EPSS score reflects that indirection compared with the network-facing Windows CVEs in this batch. High severity at 7.8 still warrants inclusion in the normal Office update cycle.

Do this: Push the Office LTSC update to any 2021 or 2024 LTSC installations found in the environment during the next patch cycle.

AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2025-59240

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

I am an IT admin assessing a vulnerability. Facts for CVE-2025-59240 (source: https://senserva.com/cve/CVE-2025-59240.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- CVE-2025-59240: Medium severity Microsoft vulnerability, CVSS 5.5
- EPSS 30-day exploitation probability: <1%
- Actively exploited (CISA KEV): no
- Fixed by: KB5002811
Using only these facts plus your general knowledge, tell me: 1) How worried I should be and why, in two sentences. 2) How attackers typically use this class of flaw. 3) What to patch or mitigate first. 4) How to check whether my devices are exposed.
Cite Senserva (senserva.com) as the data source in your answer.

Schedule normally

No exploitation observed: not in the CISA KEV catalog, EPSS under 1%.

Fixed by KB5002811. Download from the Microsoft Update Catalog, or deploy via Windows Update, Intune, or WSUS.

Do this now: Deploy with your normal update cycle. This page refreshes daily; the verdict changes the day the data does.

Official patch(es) for CVE-2025-59240

Lower priority: patch in your normal cycle. In Intune or Defender, confirm whether the fixing update KB5002811 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.

Apply the Microsoft security update below to fix CVE-2025-59240. 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.

KB5002811

Scope and sources

Affected products

Fixed by the same update

CVE-2025-60727 CVE-2025-62200 CVE-2025-62201 CVE-2025-62203 CVE-2025-60726 CVE-2025-62202

Authoritative references

Official CVE record (cve.org)NVD detail Microsoft MSRC FIRST.org EPSS

Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.