CVE DATABASE / CVE-2025-42999
CVE-2025-42999
SAP NetWeaver Deserialization Vulnerability
Confirmed exploited in the wild. Added 2025-05-15.
Federal remediation due 2025-06-05.
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.
Summary
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.
CVSS 3.1 breakdown
| Base score | 9.1 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | HIGH |
| User interaction | NONE |
| Scope | CHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Use our free CVE Lookup tool for the latest NVD record, or browse the full CISA KEV catalog.
References
- https://me.sap.com/notes/3604119
- https://url.sap/sapsecuritypatchday
- https://onapsis.com/blog/active-exploitation-of-sap-vulnerability-cve-2025-31324/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-42999
Data: NIST NVD + CISA KEV. NVD last modified 2025-10-31. Always verify against the vendor advisory before acting.