CVE-2025-42895
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedDue to insufficient validation of connection property values, the SAP HANA JDBC Client allows a high-privilege locally authenticated user to supply crafted parameters that lead to unauthorized code loading, resulting in low impact on confidentiality and integrity and high impact on availability of the application.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThe SAP HANA JDBC Client has insufficient validation of connection property values, allowing a high-privilege locally authenticated user to supply crafted parameters that lead to unauthorized code loading. This primarily impacts availability of the application.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- High
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify SAP HANA JDBC Client installationSearch for SAP HANA JDBC driver files (ngdbc.jar, sapjdbc.jar, or similar) in the application filesystem, typically under application lib directories, SAP HANA client installation paths, or within packaged applicationsAffected if SAP HANA JDBC driver file is present in the environment
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Determine JDBC driver versionInspect the MANIFEST.MF file inside the JDBC driver JAR, or run: java -jar <driver_jar>.jar -version, or check the file properties for version metadataAffected if The installed version cannot be verified or is not the latest patched version
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Verify JDBC connection property configurationReview application configuration files, connection strings, or datasource configurations that specify SAP HANA JDBC connections; look for custom connection properties in connection URLs or property filesAffected if Custom or user-influenced connection properties are accepted without validation
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Check for code loading from untrusted sourcesInspect JDBC connection configurations for parameters that may specify external library paths, custom classloaders, or dynamic code loading options (such as 'libraryPath', 'customDriverClass', or similar)Affected if Connection properties allow specification of external code or library paths that could be controlled by an authenticated user
Your environment is affected if SAP HANA JDBC Client is in use and connection property values can be set or influenced by high-privilege authenticated users without strict validation.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataImplement strict validation of all connection property values in the JDBC client to prevent injection of malicious parameters that could trigger unauthorized code loading.
- Consultation4.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,920.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-42895 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-42895 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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