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.
CVE-2021-38162
Score 9.4 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 8.9; sources differ by 0.5.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.9
- EG Score
- 9.4(medium)
- EG Risk
- 48(Track)EG Risk 48/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity94% × 45%Exploitation3% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 84.3%
- KEV
- Not listed
Published
September 14, 2021
Last Modified
February 24, 2026
References (8)
- cna@saphttp://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.html
- cna@saphttp://seclists.org/fulldisclosure/2022/May/3
- cna@saphttps://launchpad.support.sap.com/#/notes/3080567
- cna@saphttps://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405
- af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.html
- af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2022/May/3
- af854a3a-2127-422b-91ae-364da2661108https://launchpad.support.sap.com/#/notes/3080567
- af854a3a-2127-422b-91ae-364da2661108https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 14× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 02:03 UTCEG score recompute
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Frequently asked(5)
What is CVE-2021-38162?
When was CVE-2021-38162 disclosed?
Is CVE-2021-38162 actively exploited?
What is the CVSS score of CVE-2021-38162?
How do I remediate CVE-2021-38162?
Dependency Blast Radius
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