CVE-2021-27610: SAP NetWeaver Abap

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

SAP NetWeaver ABAP Server and ABAP Platform, versions - 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 804, does not create information about internal and external RFC user in consistent and distinguished format, which could lead to improper authentication and may be exploited by malicious users to obtain illegitimate access to the system.

Affected products

• SAP NetWeaver Abap: version 700 only; version 701 only; version 702 only; version 731 only; version 740 only; version 750 only; …
• SAP NetWeaver Application Server Abap: version 700 only; version 701 only; version 702 only; version 731 only; version 740 only; version 750 only; …

Published 2021-06-16. Last modified 2026-06-17.