Patch tracker / CVE reference / CVE-2025-53733

CVE-2025-53733

CVE-2025-53733 is a high severity Microsoft vulnerability with a CVSS score of 8.4. Its EPSS score puts the probability of exploitation in the next 30 days at 18%. Microsoft has shipped the fix: deploy one of the 5 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Risk summary

High

8.4

CVSS v3

18%

EPSS, 30 days

High

Severity

Not in the CISA KEV catalog. EPSS exploit probability 18%. CVSS 8.4 (High).

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

Senserva AI Opinion for CVE-2025-53733

A 17 percent EPSS makes this Word remote code execution flaw the standout of its Office batch, and its reach into SharePoint Server 2016 and 2019 means server-side document processing is exposed along with desktops. CVSS 8.8 plus real modeled exploit interest is the combination that turns into incidents.

Do this: Patch SharePoint 2016 and 2019 farms and Word clients this week rather than waiting for the normal monthly cadence.

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

Senserva AI Opinion and rich prompt for CVE-2025-53733

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-2025-53733 (source: https://senserva.com/cve/CVE-2025-53733.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- CVE-2025-53733: High severity Microsoft vulnerability, CVSS 8.4
- EPSS 30-day exploitation probability: 18%
- Actively exploited (CISA KEV): no
- Fixed by: KB5002763, KB5002769, KB5002770, KB5002771, KB5002772
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.

Patch this cycle

Not confirmed exploited yet, but the 30-day exploit probability is high (EPSS 18%).

Fixed by KB5002763 and 4 more (by build, listed below). Download from the Microsoft Update Catalog, or deploy via Windows Update, Intune, or WSUS.

Do this now: Patch in this maintenance window; do not let it slip to the next one.

Official patch(es) for CVE-2025-53733

Elevated priority: high severity or a meaningful exploitation probability, sooner if an affected product is internet-facing. In Intune or Defender, confirm whether the fixing updates KB5002763, KB5002769, KB5002770, KB5002771, KB5002772 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-2025-53733. 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.

KB5002763 KB5002769 KB5002770 KB5002771 KB5002772

Scope and sources

Affected products

Fixed by the same updates

CVE-2025-49712 CVE-2025-53738 CVE-2025-53760 CVE-2025-53736

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.