SAP NetWeaver Unrestricted File Upload Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-04-29
• Known to be used in ransomware campaigns
• EPSS: 99% chance of exploitation in the next 30 days (higher than 100% of CVEs)
• Critical severity: CVSS 9.8

[ Description ]Official description

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.

CISA: SAP NetWeaver Visual Composer Metadata Uploader contains an unrestricted file upload vulnerability that allows an unauthenticated agent to upload potentially malicious executable binaries.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 20 May 2025): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• me.sap.com/notes/3594142Permissions Required
• url.sap/sapsecuritypatchdayVendor Advisory
• onapsis.com/blog/active-exploitation-of-sap-vulnerability-cve-2025-31324Third Party Advisory
• www.bleepingcomputer.com/news/security/sap-fixes-suspected-netweaver-zero-day-exploited…Press/Media Coverage
• www.theregister.com/2025/04/25/sap_netweaver_patchPress/Media Coverage
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource