What’s Vulnerable › Vulnerabilities

CVE-2025-21403: On-Premises Data Gateway Information Disclosure Vulnerability

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-01-14 · updated 2026-06-17
• Weakness: CWE-863

Description

On-Premises Data Gateway Information Disclosure Vulnerability

Affected products

• Microsoft On-Prem Data Gateway: before 3000.246 — fixed in 3000.246
• Microsoft On-Prem Data Gateway: from 1.0.0 before 3000.246 — fixed in 3000.246

How to fix

Upgrade to a fixed version: Microsoft On-Prem Data Gateway 3000.246; Microsoft On-Prem Data Gateway 3000.246. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21403

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