CVE-2021-27635: SAP NetWeaver AS for JAVA, versions - 7.20, 7.30, 7.31, 7.40, 7.50, allows an attacker authenticated as an...

Security readout for executives and security teams

This flaw affects SAP NetWeaver AS for Java and can let an already authenticated administrator use a crafted XML file to read files from the server or crash the system. It is serious because SAP systems often hold sensitive business data, but the known requirement for administrator privileges narrows likely attackers. Exposure is most likely in organizations running affected SAP NetWeaver AS for Java versions where administrative users can access the vulnerable network-reachable XML handling path. Internet exposure is not stated in the sources; verify internal and external administrative reachability. Treat this as a high-priority SAP remediation item, especially for business-critical NetWeaver systems. The administrator privilege requirement reduces broad internet risk, but compromise by a privileged insider or stolen admin account could expose sensitive files or disrupt availability. Mitigation focus: Review SAP Security Note 3053066 and apply the vendor-provided correction where applicable.; Restrict administrative access to SAP NetWeaver AS for Java management functions.; Limit network reachability to administrative interfaces from trusted management networks only..

Prepared

May 22, 2026, 18:18 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.