Is CVE-2021-33690 actively exploited?

Yes. CVE-2021-33690 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-33690 be exploited remotely?

The attack vector of CVE-2021-33690 has not been classified yet.

What is the CVSS score of CVE-2021-33690?

CVE-2021-33690 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-33690

UNKNOWNCISA KEVIN THE WILD

CVE-2021-33690

Published: April 11, 2026

EPSS:93.26%probability of exploitation in 30 daysPercentile:99.8th

Official Description

Server-Side Request Forgery (SSRF) vulnerability has been detected in the SAP NetWeaver Development Infrastructure Component Build Service versions - 7.11, 7.20, 7.30, 7.31, 7.40, 7.50The SAP NetWeaver Development Infrastructure Component Build Service allows a threat actor who has access to the server to perform proxy attacks on server by sending crafted queries. Due to this, the threat actor could completely compromise sensitive data residing on the Server and impact its availability.Note: The impact of this vulnerability depends on whether SAP NetWeaver Development Infrastructure (NWDI) runs on the intranet or internet. The CVSS score reflects the impact considering the worst-case scenario that it runs on the internet.

NVD Source

Technical Analysis

CVE-2021-33690 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-33690 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.