Insecure Deserialization in SAP NetWeaver (Visual Composer development server)
Priority CRITICAL 98Exploited in the wildCWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.
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.
Why it matters now
Exploitation Active In CISA KEV since 2025-05-15CISA due date 2025-06-05Known ransomware use
EPSS 0.12854 96th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2025-05-15 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2025-42999
- 2026-10-03 Alias added: GHSA-rgq9-rg7j-xm4x
References
More SAP Netweaver vulnerabilities
- TI-2025-22522 Missing Authorization check in SAP NetWeaver (Visual Composer development server) KEVCVSS 3.1CRITICAL 10.0
- TI-2021-15842 Path traversal in SAP NetWeaver KEVCVSS 3.1CRITICAL 9.9
- TI-2012-02262 The DiagTraceR3Info function in the Dialog processor in disp+work.exe 7010.29.15.58313… CVSS 2.0HIGH 9.3
- TI-2013-01399 A Buffer Overflow vulnerability exists in the Message Server service… CVSS 3.1CRITICAL 9.8
- TI-2016-02149 Directory traversal vulnerability in the GetFileList function in the SAP Manufacturing… CVSS 3.0HIGH 7.5
- TI-2023-13616 Directory/Path Traversal vulnerability in SAP NetWeaver. CVSS 3.1HIGH 8.7
Sources
- CVE-2025-42999 · CVE Program
- CVE-2025-42999 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-rgq9-rg7j-xm4x · GitHub Advisory Database · CC BY 4.0
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