Patch tracker / CVE reference / CVE-2025-53142

CVE-2025-53142

CVE-2025-53142 is a Microsoft vulnerability that Microsoft rates Important, with a CVSS score of 7.0 (High). Its EPSS score puts the probability of exploitation in the next 30 days at 51%. Microsoft has shipped the fix: deploy one of the 4 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Our data comes from Microsoft, CISA and other public sources, and it can be wrong or out of date. If you are unsure, check the linked source before you act, and tell us when we are wrong so we can fix it.

Microsoft rates it Important. CVSS 7.0 (High). Fixed by 4 Microsoft security updates.

Senserva AI read on CVE-2025-53142 Official patches for CVE-2025-53142 Change history Admin questions

Risk summary

High

7.0

CVSS v3

51%

EPSS, 30 days

High

Severity

Not in the CISA KEV catalog. EPSS exploit probability 51%. CVSS 7.0 (High).

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

Senserva AI Opinion for CVE-2025-53142

A second Brokering File System elevation of privilege bug, this one Critical 9.8 versus the High-rated CVE-2025-54105 earlier in this batch, hits Windows 11 22H2 and Server 2025 Server Core. The higher severity and 36 percent EPSS make this the more urgent of the two Brokering File System fixes this cycle.

Do this: Patch this ahead of the lower-severity Brokering File System CVE in the same release, prioritizing Windows 11 22H2 fleets.

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

Patch this cycle

Not confirmed exploited yet, but the 30-day exploit probability is high (EPSS 51%).

Fixed by KB5063875 and 3 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.

Senserva AI Opinion and rich prompt for CVE-2025-53142

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-2025-53142 (source: https://senserva.com/cve/CVE-2025-53142.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed daily (early morning US Central)):
- CVE-2025-53142: Microsoft vulnerability, Microsoft rating Important, CVSS 7.0 (High)
- EPSS 30-day exploitation probability: 51%
- Actively exploited (CISA KEV): no
- Fixed by: KB5063875, KB5063878, KB5063899, KB5064010
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.

Official patch(es) for CVE-2025-53142

High priority: EPSS puts the odds of near-term exploitation high. In Intune or Defender, confirm whether the fixing updates KB5063875, KB5063878, KB5063899, KB5064010 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-2025-53142. 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.

KB5063875 KB5063878 KB5063899 KB5064010

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

CVE-2025-53142

Risk summary

Official patch(es) for CVE-2025-53142

Scope and sources