Actively exploited · Published May 13, 2025 · Assigned by sap
CVE-2025-42999Insecure Deserialization in SAP NetWeaver (Visual Composer development server)
Critical 9.1 Exploited Ransomware
In plain English
A critical-severity unsafe deserialization in SAP NetWeaver (Visual Composer development server) from SAP_SE. Attackers are actively exploiting it in the wild (listed by CISA on May 15, 2025). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 12.9% (higher than 96% of all known vulnerabilities). Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Jun 5, 2025.
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SAP_SE | SAP NetWeaver (Visual Composer development server) | VCFRAMEWORK 7.50 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H