SAP NetWeaver Deserialization Vulnerability
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…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 4 / 5
- KEV catalog (CISA)15 May 2025
- Exploited in EUVD (ENISA)15 May 2025
- Used by ransomwareyes
- EPSS above 10 %12.9%
- No account, over the networkno
What to do
Fix
Apply the vendor’s fix as soon as it is available.
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.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
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
- VCFRAMEWORK 7.50
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
-
Added to the KEV catalog
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CISA remediation due date
-
EPSS peak: 13.9%
References
Other exploited vulnerabilities from the same vendor
- CVE-2025-31324SAP NetWeaver Unrestricted File Upload Vulnerability10.0 · Background exploitation
- CVE-2017-12637SAP NetWeaver Directory Traversal Vulnerability8.3 · Background exploitation
- CVE-2019-0344SAP Commerce Cloud Deserialization of Untrusted Data Vulnerability5.9 · Background exploitation
- CVE-2022-22536SAP Multiple Products HTTP Request Smuggling Vulnerability9.3 · Background exploitation
- CVE-2021-38163SAP NetWeaver Unrestricted File Upload Vulnerability6.9 · Background exploitation
- CVE-2016-2388SAP NetWeaver Information Disclosure Vulnerability6.1 · Background exploitation