Cyber Resilience

CVE-2021-38162

HighPublic PoC

Published: 14 September 2021

Published
14 September 2021
Modified
24 February 2026
KEV Added
Patch
CVSS Score v3.1 8.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
EPSS Score 0.0180 83.2th percentile
Risk Priority 19 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-38162 is a high-severity HTTP Request/Response Smuggling (CWE-444) vulnerability in Sap Web Dispatcher. Its CVSS base score is 8.9 (High).

Operationally, ranked in the top 16.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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…

more

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.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

sap
web dispatcher
7.22ext, 7.49, 7.53, 7.77, 7.81

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References