CVE-2021-27603: SAP NetWeaver Application Server Abap

Medium severity, CVSS 6.5. EPSS: 0.9% chance of exploitation in the next 30 days.

An RFC enabled function module SPI_WAIT_MILLIS in SAP NetWeaver AS ABAP, versions - 731, 740, 750, allows to keep a work process busy for any length of time. An attacker could call this function module multiple times to block all work processes thereby causing Denial of Service and affecting the Availability of the SAP system.

Affected products

• SAP NetWeaver Application Server Abap: version 731 only; version 740 only; version 750 only

Published 2021-04-13. Last modified 2026-06-17.