---
title: "CVE-2025-42999: Insecure Deserialization in SAP NetWeaver… | CubePath"
description: "SAP NetWeaver Visual Composer Metadata Uploader is vulnerable when a privileged user can upload untrusted or malicious content which, when deserialized…"
language: en
source: https://cubepath.com/security/cve/CVE-2025-42999
---

# CVE-2025-42999: Insecure Deserialization in SAP NetWeaver… | CubePath

## Description

SAP NetWeaver Visual Composer Metadata Uploader 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.

Official description from the CVE record, published by sap. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-42999)

## Key data

### CVSS 3.1 Critical 9.1

Score published by sap in the CVE record.

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

| Metric                 | Value   | What it means                                                                       |
| ---------------------- | ------- | ----------------------------------------------------------------------------------- |
| Attack vector          | Network | The vulnerable component can be reached over a network, possibly from the Internet. |
| Attack complexity      | Low     | No special conditions are needed. The attack can be repeated at will.               |
| Privileges required    | High    | An account with significant privileges, such as an administrator, is needed.        |
| User interaction       | None    | No action from any user is needed.                                                  |
| Scope                  | Changed | The impact can reach other components beyond the vulnerable one.                    |
| Confidentiality impact | High    | Serious or total effect on the secrecy of data.                                     |
| Integrity impact       | High    | Serious or total effect on the trustworthiness of data.                             |
| Availability impact    | High    | Serious or total effect on availability.                                            |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.12854 (12.9% probability)

Percentile

96.3%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA Known Exploited Vulnerabilities

This CVE is listed in the CISA KEV catalog.

Name in the catalog

SAP NetWeaver Deserialization Vulnerability

Added to the catalog

May 15, 2025

Federal due date

Jun 5, 2025

Ransomware campaigns

Known use

### CISA assessment as of May 12, 2025

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation

Recorded by CISA as active

Automatable

no

Technical impact

total

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-502](https://cwe.mitre.org/data/definitions/502.html) Deserialization of Untrusted Data

## Affected products

Products listed in the CVE record, as the CNA published them.

- SAP\_SE SAP NetWeaver (Visual Composer development server)

  - affected: VCFRAMEWORK 7.50

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [me.sap.com/notes/3604119](https://me.sap.com/notes/3604119)
- [url.sap/sapsecuritypatchday](https://url.sap/sapsecuritypatchday)
- [onapsis.com/blog/active-exploitation-of-sap-vulnerability-c…](https://onapsis.com/blog/active-exploitation-of-sap-vulnerability-cve-2025-31324/)

## Timeline

1. ID reserved Apr 16, 2025
2. Record published May 13, 2025
3. Added to CISA KEV May 15, 2025
4. Record last updated Aug 11, 2026

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:19 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)