RCE in Microsoft Power Automate For Desktop

CVE-2025-21187

Microsoft Power Automate Remote Code Execution Vulnerability

Vulnerability class: RCE (Remote Code Execution)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (55.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-21187: held from 0.007 to 0.008.

EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-21187?
CVE-2025-21187 is a high-severity vulnerability in Microsoft Power Automate For Desktop, classified under Code Injection. CVSS score: 7.8/10. Published 2025-01-14.
How severe is CVE-2025-21187?
High severity. CVSS v3 base score is 7.8 out of 10.