CVE-2025-42999
Actively exploited. CVE-2025-42999 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-05-15) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
SAP NetWeaver Visual Composer Metadata Uploader contains a deserialization vulnerability that allows a privileged attacker to compromise the confidentiality, integrity, and availability of the host system by deserializing untrusted or malicious content.
CSIRTS triage
- What
- A deserialization vulnerability allows a privileged attacker to compromise the system's confidentiality, integrity, and availability.
- Who is affected
- Deployments of SAP NetWeaver that utilize the Visual Composer Metadata Uploader.
- Urgency
- Immediate remediation is necessary due to active exploitation and critical severity.
- Action
- Apply the latest security patch from SAP to mitigate the risk.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2025-42999
Get an email if CVE-2025-42999 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 95% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2025-42999: SAP NetWeaver Deserialization Vulnerabilitycisa-kev · 2025-05-15
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2025-42999)