CVE-2025-21403 On-Premises Data Gateway Information Disclosure Vulnerability
Medium 6.4
Published
Updated
Check this codebase for CVE-2025-21403 and fix it if it is affected.
What it is: CVE-2025-21403 is a medium-severity vulnerability in Microsoft On-Premises Data Gateway, published on 14 Jan 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-21403 in the wild and no public exploit code.
Affected product: Microsoft On-Premises Data Gateway. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2025-21403/ (Markdown: https://insights.sbomify.com/CVE-2025-21403/index.md)
An attacker can exploit an authorization flaw in Microsoft On-Premises Data Gateway to disclose sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-21403?
CVE-2025-21403 is a medium-severity vulnerability in Microsoft On-Premises Data Gateway, published on 14 Jan 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
On-Premises Data Gateway Information Disclosure Vulnerability
Weakness: CWE-863
Which versions are affected by CVE-2025-21403?
It affects 1 product.
Products include Microsoft On-Prem Data Gateway.
How do I fix CVE-2025-21403?
No fix has been published for CVE-2025-21403 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-21403 being exploited?
There is no known exploitation of CVE-2025-21403 in the wild and no public exploit code.
Other vulnerabilities in Microsoft On-Premises Data Gateway
Sources
Also known as GHSA-p4q7-3j6p-6gv6.