On-Premises Data Gateway Information Disclosure Vulnerability
Priority LOW 31CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.
Summary
On-Premises Data Gateway Information Disclosure Vulnerability
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00591 48th percentileScored 2026-11-07
Fix Fixed On-Premises Data Gateway (Microsoft): 3000.246
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA On-Premises Data Gateway (Microsoft) Fixed in 3000.246
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Information Disclosure
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
| Product | Status | Plan or fix |
|---|---|---|
| On-Premises Data Gateway | Fixed | 3000.246 · Security Update |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-21403
- 2026-10-03 Alias added: GHSA-p4q7-3j6p-6gv6
References
More Microsoft On-prem Data Gateway vulnerabilities
- TI-2023-18077 Microsoft On-Prem Data Gateway Security Feature Bypass Vulnerability CVSS 3.1HIGH 8.0
Sources
- CVE-2025-21403 · CVE Program
- CVE-2025-21403 · NVD
- FIRST EPSS
- GHSA-p4q7-3j6p-6gv6 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-21403 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences