What’s Vulnerable › Vulnerabilities

CVE-2021-38162

• Severity: critical (CVSS 9.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-14 · updated 2026-06-17
• Weakness: CWE-444

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.

Affected products

• SAP_SE SAP Web Dispatcher: 7.22ext, 7.49, 7.53, 7.77, 7.81, 7.83 (+3)

References

• http://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.html
• http://seclists.org/fulldisclosure/2022/May/3
• https://launchpad.support.sap.com/#/notes/3080567
• https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405
• http://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.html
• http://seclists.org/fulldisclosure/2022/May/3
• https://launchpad.support.sap.com/#/notes/3080567
• https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405

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