CVE-2025-21403

mediumpriority · track · 0OT risk · elevatedEPSS 0.006 · 48 %ileDEEUNLRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.59% (48th) EPSS

CVSS 6.4 · medium

Is it mine?

7 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

On-Premises Data Gateway Information Disclosure Vulnerability

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedOn-Premises Data Gatewaymsrc_csaf
3000.246:Security Update:https://learn.microsoft.com/en-us/data-integration/gateway/service-gateway-monthly-updates
https://learn.microsoft.com/en-us/data-integration/gateway/service-gateway-monthly-updates

cvss

Technical severity, 0–10. One row per scoring source.

6.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.4mediumAV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.16.4mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N/E:U/RC:Csecondary · ENISA EU

v3.16.4mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:Nsecondary · secure@microsoft.com USexploitability 1.2 · impact 5.2

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.16.4mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N/E:U/RC:Csecondary · NCSC-NL NL

v3.16.4mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N/E:U/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USCWE-863USCWE-863USCWE-863US

affected products (7)

Products and version ranges known to be affected.

Microsoft Azureall versionscert_bundDEcpe:/a:microsoft:azure:-
Microsoft On-Premises Data Gateway1.0.0 → 3000.246enisa_euvdEU
Microsoft Corp On-Premises Data Gateway≤ 3000.246fstec_bduRU
Microsoft On-Premises Data Gatewayall versionsfixedmsrc_csafUS
Microsoft On-Premises Data Gateway< 3000.246msrc_csafUS
microsoft on-premises data gatewayall versionsncsc_nlNLcpe:2.3:a:microsoft:on-premises_data_gateway:*:*:*:*:*:*:*:*
microsoft on-prem data gateway< 3000.246nvdUScpe:2.3:a:microsoft:on-prem_data_gateway:*:*:*:*:*:*:*:*

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2025-0013Kwetsbaarheden verholpen in Microsoft AzureNL2025-01-14csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Azure producten.
WID-SEC-W-2025-0094Microsoft Azure: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2025-01-14csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Microsoft Azure ausnutzen, um Informationen offenzulegen.
msrc_CVE-2025-21403On-Premises Data Gateway Information Disclosure Vulnerability2025-01-14csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund msrc_csaf ncsc_nl nvd NVD CVE.org MITRE

published 2025-01-14modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

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