Deserialization in Sap Netweaver
CVE-2025-42999
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…
Vulnerability class: Insecure Deserialization
EPSS: 0.125 (95.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 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.
Affected products
- Sap Netweaver — versions 7.5
- Sap_se Sap Netweaver (Visual Composer Development Server) — versions VCFRAMEWORK 7.50
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
Public proof-of-concept exploits
References
- cna@sap.com (Permissions Required)
- cna@sap.com (Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Exploit, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2025-42999?
- CVE-2025-42999 is a critical-severity vulnerability in Sap Netweaver, classified under Deserialization of Untrusted Data. CVSS score: 9.1/10. Published 2025-05-13.
- How severe is CVE-2025-42999?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2025-42999 known to be exploited?
- Yes. CVE-2025-42999 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-05-15), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.