Background exploitation KEV catalog Ransomware No authentication
CVE-2025-31324

SAP NetWeaver Unrestricted File Upload Vulnerability

SAP NetWeaver Visual Composer Metadata Uploader is not protected with a proper authorization, allowing unauthenticated agent to upload potentially malicious executable binaries that could severely harm the host system. This could…

CheckOps priority index
10.0/10 Patch within 24 h
Severity10.0
Probability9.9
Exploitation5/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 99.5% higher than 99.9% of CVEs
CVSS 3.1 10.0 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:
Exploited for 553 days 29 Apr 2025
CISA due date 20 May 2025 for US federal agencies

Exploitation probability EPSS · FIRST

05010025 Sep05 Oct15 Oct24 Oct02 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 5 / 5

  • KEV catalog (CISA)29 Apr 2025
  • Exploited in EUVD (ENISA)29 Apr 2025
  • Used by ransomwareyes
  • EPSS above 10 %99.5%
  • No account, over the networkyes

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 not protected with a proper authorization, allowing unauthenticated agent to upload potentially malicious executable binaries that could severely harm the host system. This could significantly affect the confidentiality, integrity, and availability of the targeted system.

Affected products

SAP NetWeaver (Visual Composer development server)NetWeaver
Affected versions
  • VCFRAMEWORK 7.50
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 99.5%

References

Other exploited vulnerabilities from the same vendor

  • CVE-2025-42999SAP NetWeaver Deserialization Vulnerability
    6.4 · Background exploitation
  • CVE-2017-12637SAP NetWeaver Directory Traversal Vulnerability
    8.3 · Background exploitation
  • CVE-2019-0344SAP Commerce Cloud Deserialization of Untrusted Data Vulnerability
    5.9 · Background exploitation
  • CVE-2022-22536SAP Multiple Products HTTP Request Smuggling Vulnerability
    9.3 · Background exploitation
  • CVE-2021-38163SAP NetWeaver Unrestricted File Upload Vulnerability
    6.9 · Background exploitation
  • CVE-2016-2388SAP NetWeaver Information Disclosure Vulnerability
    6.1 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities