CVE-2021-38162

Published Sep 14, 2021 CVSS 3.1 · 8.9 High EPSS 2.7% KEV · Not listed

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

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

SAP SE

SAP Web Dispatcher

unaffected

Version	Status	Constraints
`WEBDISP - 7.49`	affected	—
`7.53`	affected	—
`7.77`	affected	—
`7.81`	affected	—
`KRNL64NUC - 7.22`	affected	—
`7.22EXT`	affected	—
`7.49`	affected	—
`KRNL64UC -7.22`	affected	—
`KERNEL - 7.22`	affected	—
`7.83`	affected	—

Configuration 1 [-]

OR	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:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2021-24632	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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 2.7% (2.739% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
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

History

Feb 24, 2026 6:00 PM Description updated View changes

Type	Values Removed	Values Added
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.	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.