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CVE-2025-42999

Critical CVSS 9.1 Known exploited

Published 2025-05-13 · last changed 2026-08-11 · added to CISA KEV 2025-05-15

This one is being exploited in the wild.

CISA added CVE-2025-42999 to the Known Exploited Vulnerabilities catalog on 2025-05-15. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2025-42999, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

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.

Sources

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H