CVEs / CVE-2025-42999
CVE-2025-42999: SAP NetWeaver Deserialization Vulnerability
- Known exploited in the CISA KEV catalog since 15 May 2025
- critical 9.1 CVSS 3.1 (from the CNA)
- EPSS 12.8% chance of exploitation in the next 30 days, higher than 96% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
SAP NetWeaver Visual Composer Metadata Uploader contains a deserialization vulnerability that allows a privileged attacker to compromise the confidentiality, integrity, and availability of the host system by deserializing untrusted or malicious content.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| SAP_SE SAP NetWeaver (Visual Composer development server) | VCFRAMEWORK 7.50 | — |
Exploitation
| In CISA KEV since | 15 May 2025 |
|---|---|
| Due date for US federal agencies | 5 Jun 2025 |
| Used in ransomware campaigns | Known |
| Required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 9.1 criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-502 |
References
- CVE-2025-42999 on NVD
- CVE-2025-42999 in the CISA KEV catalog
- https://me.sap.com/notes/3604119 (cited by CISA)
- https://me.sap.com/notes/3604119 Permissions Required
- https://url.sap/sapsecuritypatchday Vendor Advisory
- https://onapsis.com/blog/active-exploitation-of-sap-vulnerability-cve-2025-31324/ Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-42999 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.