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Deserialization of Untrusted DataWeakness · CWE-502

CVE-2025-42980

CRITICAL · 9.1 CVSS v3.1 Published 2025-07-08
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
97/100
Remediation priority · Urgent
Remotely reachable Zero-click

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 · unedited
SAP NetWeaver Enterprise Portal Federated Portal Network is vulnerable when a privileged user can upload untrusted or malicious content which, when deserialized, could potentially lead to a compromise of confidentiality, integrity, and availability of the host system.

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 confidence

SAP NetWeaver Enterprise Portal's Federated Portal Network (FPN) feature contains a deserialization vulnerability where a privileged user can upload malicious content that, when processed by the system, enables complete compromise of confidentiality, integrity, and availability. The high CVSS score (9.1) reflects the severe impact of successful exploitation.

MitigationApply SAP security notes/patches for CVE-2025-42980 immediately; disable or restrict Federated Portal Network functionality if not required; implement strict input validation and consider network segmentation of the Portal component.

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
Network
Complexity
Low
Privileges
High
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify SAP NetWeaver Enterprise Portal installation
    Check for SAP NetWeaver Enterprise Portal by reviewing installed SAP software components. On the server, look for the SAP NetWeaver installation directory (typically under /sapmnt/<SID>/<instance> or C:\sapmnt\<SID>\<instance> on Windows). Verify the presence of the Enterprise Portal component via SAPInst or SAP SAPMMC management console.
    Affected if SAP NetWeaver Enterprise Portal is installed on the system.
  2. Determine if Federated Portal Network (FPN) is enabled
    Access the SAP NetWeaver Administrator (NWA) or Enterprise Portal administration console. Navigate to System Administration -> System Configuration -> Enterprise Portal -> Federated Portal Network. Verify whether FPN is activated or configured.
    Affected if FPN is enabled and configured in the Enterprise Portal.
  3. Verify deserialization settings for FPN
    In the SAP NetWeaver Administrator, check the FPN configuration for deserialization settings. Look for parameters controlling object deserialization or serialized content handling in the FPN settings. Inspect the file system for FPN configuration XML files in the Enterprise Portal profile or configuration directories.
    Affected if FPN allows untrusted serialized content to be uploaded and deserialized without strict validation.
  4. Review privileged user access to FPN
    Check the user management configuration in SAP NetWeaver to identify users with FPN administrative privileges. Review the role assignments for Enterprise Portal users who have the ability to configure FPN or upload content through FPN endpoints.
    Affected if Privileged users with FPN upload or configuration rights exist in the system.

You are affected if SAP NetWeaver Enterprise Portal is installed with the Federated Portal Network component enabled and configured to allow deserialization of uploaded content without strict validation, allowing privileged users to inject malicious serialized objects.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply SAP security notes/patches for CVE-2025-42980 immediately; disable or restrict Federated Portal Network functionality if not required; implement strict input validation and consider network segmentation of the Portal component.

Recommended fix Moderate confidence
  1. Contact SAP Support to obtain the specific security patch for CVE-2025-42980
  2. Apply the SAP Security Note to your SAP NetWeaver Enterprise Portal system
  3. Verify the patch was applied successfully
  4. Test the Federated Portal Network functionality to ensure no regression

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing24.0 h
  • Review / QA12.0 h
60.0 hours of engineering $10,240
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-42980 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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