IRONSMITHINTEL
CRITICALCVSS10.0
|
Actively Exploited
|CISA KEV|CVE-2022-22536|Auth: none — unauthenticated|Reboot: required|Manual only

SAP Multiple Products HTTP Request Smuggling Vulnerability

SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server and SAP Web Dispatcher allow HTTP request smuggling. An unauthenticated attacker can prepend a victim's request with arbitrary data, allowing for function execution impersonating the victim or poisoning intermediary Web caches.

Published Feb 9, 2022 · Updated May 16, 2026
Why patchRisk explained in plain English
Worst-case scenarioIf unpatched

A remote attacker, without authentication, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. Federal agencies are required to remediate by 2022-09-08 under CISA BOD 22-01.

How the attack worksNo clicks needed

This is a Software Vulnerability (CWE-444) (CWE-444) vulnerability in SAP Multiple Products. SAP NetWeaver Application Server ABAP, SAP NetWeaver Application Server Java, ABAP Platform, SAP Content Server 7.53 and SAP Web Dispatcher are vulnerable for request smuggling and request concatenation. An unauthenticated attacker can prepend a victim's request with arbitrary data. This way, the attacker can execute functions impersonating the victim or poison intermediary Web caches. A successful attack could result in complete compromise of Confidentiality, Integrity and Availability of the system. Exploitation requires remote network access, low attack complexity, no authentication required, and no user interaction required.

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Phishing link

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Malicious file

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Server compromised

Am I affected?Quick check

Probably yes if any of these apply:

IT Security
Running content server: 7.53; netweaver application server abap: 7.22, 7.49, 7.53, 7.77, 7.81, 7.85, 7.86, 7.87, 8.04, krnl64nuc_7.22, krnl64nuc_7.22ext, krnl64nuc_7.49, krnl64uc_7.22, krnl64uc_7.22ext, krnl64uc_7.49, krnl64uc_7.53, krnl64uc_8.04; web dispatcher: 7.22ext, 7.49, 7.53, 7.77, 7.81, 7.85, 7.86, 7.87
Real-world incidentsWhat we've seen

CISA added this CVE to the Known Exploited Vulnerabilities catalog on 2022-08-18 based on evidence of active exploitation in the wild. Federal agencies required to remediate by 2022-09-08.

How to patch

Manual remediation steps

Apply the Vendor Patch

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog — apply the vendor's security update as soon as possible.

CISA required action: Apply updates per vendor instructions.

References

    1
    Vendor advisory: https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.html
    1
    NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2022-22536
    1
    CISA KEV: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-22536
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