CVE-2021-38162: SAP Web Dispatcher

Critical severity, CVSS 9.4. EPSS: 2.7% chance of exploitation in the next 30 days.

SAP Web Dispatcher versions - 7.49, 7.53, 7.77, 7.81, KRNL64NUC - 7.22, 7.22EXT, 7.49, KRNL64UC -7.22, 7.22EXT, 7.49, 7.53, KERNEL - 7.22, 7.49, 7.53, 7.77, 7.81, 7.83 processes allow an unauthenticated attacker to submit a malicious crafted request over a network to a front-end server which may, over several attempts, result in a back-end server confusing the boundaries of malicious and legitimate messages. This can result in the back-end server executing a malicious payload which can be used to read or modify any information on the server or consume server resources making it temporarily unavailable.

Affected products

• SAP Web Dispatcher: version 7.22ext only; version 7.49 only; version 7.53 only; version 7.77 only; version 7.81 only; version 7.83 only; …

Published 2021-09-14. Last modified 2026-06-17.