High severity8.9NVD Advisory· Published Sep 14, 2021· Updated Jun 17, 2026
CVE-2021-38162
CVE-2021-38162
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
11- SAP SE/SAP Web Dispatcherv5Range: WEBDISP - 7.49
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+ 9 more
- (no CPE)range: 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
- cpe:2.3:a:sap:web_dispatcher:7.22ext:*:*:*:*:*:*:*
- cpe:2.3:a:sap:web_dispatcher:7.49:*:*:*:*:*:*:*
- cpe:2.3:a:sap:web_dispatcher:7.53:*:*:*:*:*:*:*
- cpe:2.3:a:sap:web_dispatcher:7.77:*:*:*:*:*:*:*
- cpe:2.3:a:sap:web_dispatcher:7.81:*:*:*:*:*:*:*
- cpe:2.3:a:sap:web_dispatcher:7.83:*:*:*:*:*:*:*
- cpe:2.3:a:sap:web_dispatcher:kernel_7.22:*:*:*:*:*:*:*
- cpe:2.3:a:sap:web_dispatcher:krnl64nuc_7.22:*:*:*:*:*:*:*
- cpe:2.3:a:sap:web_dispatcher:krnl64uc_7.22:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
4- packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.htmlnvdExploitThird Party AdvisoryVDB Entry
- seclists.org/fulldisclosure/2022/May/3nvdExploitMailing ListThird Party Advisory
- wiki.scn.sap.com/wiki/pages/viewpage.actionnvdVendor Advisory
- launchpad.support.sap.comnvdPermissions Required
News mentions
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