6.7

CVE-2025-47171: microsoft 365_apps Improper Input Validation

CVSS: 6.7v3.1MediumAnalyzed
Published 10-06-2025Last modified 26-02-2026

Vulnerability summary

CVE-2025-47171 is a medium (CVSS 6.7) Improper Input Validation vulnerability in microsoft 365_apps. EPSS estimates a 1.68% chance of exploitation in the next 30 days, higher than 76.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
37/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.68%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

  1. 10-06-2025
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

Description

Improper input validation in Microsoft Office Outlook allows an authorized attacker to execute code locally.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.68%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

+0.03 pp

From 1.66% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.68%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databaseremotewindowsUnverified

    Microsoft Outlook - Remote Code Execution (RCE)

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Microsoft9 products

1 vendor · 9 products

References

1 links