SAP Web Dispatcher

SAP Web Dispatcher ICM Unauthenticated Interface Exposure
CVE-2025-42878 8.2 - High - December 09, 2025

SAP Web Dispatcher and ICM may expose internal testing interfaces that are not intended for production. If enabled, unauthenticated attackers could exploit them to access diagnostics, send crafted requests, or disrupt services. This vulnerability has a high impact on confidentiality, availability and low impact on integrity and of the application.

Improper Access to Sensitive Information Using Debug and Test Interfaces

SAP Web Dispatcher/ICM Content Server MemCorruption via Logical Error
CVE-2025-42877 7.5 - High - December 09, 2025

SAP Web Dispatcher, Internet Communication Manager (ICM), and SAP Content Server allow an unauthenticated user to exploit logical errors that lead to a memory corruption vulnerability. This results in high impact on the availability with no impact on confidentiality or integrity of the application.

Memory Corruption

SAP Web Dispatcher / NetWeaver Auth Bypass: User Impersonation
CVE-2024-33005 6.3 - Medium - August 13, 2024

Due to the missing authorization checks in the local systems, the admin users of SAP Web Dispatcher, SAP NetWeaver Application Server (ABAP and Java), and SAP Content Server can impersonate other users and may perform some unintended actions. This could lead to a low impact on confidentiality and a high impact on the integrity and availability of the applications.

AuthZ

SAP Web Dispatcher High-Confidentiality Bypass in ICM (7.54)
CVE-2024-22124 7.5 - High - January 09, 2024

Under certain conditions, Internet Communication Manager (ICM) or SAP Web Dispatcher - versions KERNEL 7.22, KERNEL 7.53, KERNEL 7.54, KRNL64UC 7.22, KRNL64UC 7.22EXT, KRNL64UC 7.53, KRNL64NUC 7.22, KRNL64NUC 7.22_EXT, WEBDISP 7.22_EXT, WEBDISP 7.53, WEBDISP 7.54, could allow an attacker to access information which would otherwise be restricted causing high impact on confidentiality.

SAP CommonCryptoLib Auth Bypass (CVE-2023-40309)
CVE-2023-40309 9.8 - Critical - September 12, 2023

SAP CommonCryptoLib does not perform necessary authentication checks, which may result in missing or wrong authorization checks for an authenticated user, resulting in escalation of privileges. Depending on the application and the level of privileges acquired, an attacker could abuse functionality restricted to a particular user group as well as read, modify or delete restricted data.

AuthZ

SAP CommonCryptoLib MemCorruption CVE-2023-40308
CVE-2023-40308 7.5 - High - September 12, 2023

SAP CommonCryptoLib allows an unauthenticated attacker to craft a request, which when submitted to an open port causes a memory corruption error in a library which in turn causes the target component to crash making it unavailable. There is no ability to view or modify any information.

Memory Corruption

SAP Web Dispatcher (WEBDISP 7.53-7.93) Memory Corruption High Impact
CVE-2023-35871 9.4 - Critical - July 11, 2023

The SAP Web Dispatcher - versions WEBDISP 7.53, WEBDISP 7.54, WEBDISP 7.77, WEBDISP 7.85, WEBDISP 7.89, WEBDISP 7.91, WEBDISP 7.92, WEBDISP 7.93, KERNEL 7.53, KERNEL 7.54 KERNEL 7.77, KERNEL 7.85, KERNEL 7.89, KERNEL 7.91, KERNEL 7.92, KERNEL 7.93, KRNL64UC 7.53, HDB 2.00, XS_ADVANCED_RUNTIME 1.00, SAP_EXTENDED_APP_SERVICES 1, has a vulnerability that can be exploited by an unauthenticated attacker to cause memory corruption through logical errors in memory management this may leads to information disclosure or system crashes, which can have low impact on confidentiality and high impact on the integrity and availability of the system.

Memory Corruption

Unauth Request Injection in SAP Web Dispatcher 7.49-7.90
CVE-2023-33987 9.4 - Critical - July 11, 2023

An unauthenticated attacker in SAP Web Dispatcher - versions WEBDISP 7.49, WEBDISP 7.53, WEBDISP 7.54, WEBDISP 7.77, WEBDISP 7.81, WEBDISP 7.85, WEBDISP 7.88, WEBDISP 7.89, WEBDISP 7.90, KERNEL 7.49, KERNEL 7.53, KERNEL 7.54 KERNEL 7.77, KERNEL 7.81, KERNEL 7.85, KERNEL 7.88, KERNEL 7.89, KERNEL 7.90, KRNL64NUC 7.49, KRNL64UC 7.49, KRNL64UC 7.53, HDB 2.00, XS_ADVANCED_RUNTIME 1.00, SAP_EXTENDED_APP_SERVICES 1, can 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 information on the server or make it temporarily unavailable.

HTTP Request Smuggling

IP Netmask Bypass in SAP Web Dispatcher 7.857.91 Enables Unauthorized Access
CVE-2023-29108 5.3 - Medium - April 11, 2023

The IP filter in ABAP Platform and SAP Web Dispatcher - versions WEBDISP 7.85, 7.89, KERNEL 7.85, 7.89, 7.91, may be vulnerable by erroneous IP netmask handling. This may enable access to backend applications from unwanted sources.

Due to an uncontrolled recursion in SAP Web Dispatcher and SAP Internet Communication Manager, the application may crash, leading to denial of service, but
CVE-2022-28773 7.5 - High - April 12, 2022

Due to an uncontrolled recursion in SAP Web Dispatcher and SAP Internet Communication Manager, the application may crash, leading to denial of service, but can be restarted automatically.

Stack Exhaustion

By overlong input values an attacker may force overwrite of the internal program stack in SAP Web Dispatcher - versions 7.53, 7.77, 7.81, 7.85, 7.86, or Internet Communication Manager - versions 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, 7.85, 7.86
CVE-2022-28772 7.5 - High - April 12, 2022

By overlong input values an attacker may force overwrite of the internal program stack in SAP Web Dispatcher - versions 7.53, 7.77, 7.81, 7.85, 7.86, or Internet Communication Manager - versions 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, 7.85, 7.86, which makes these programs unavailable, leading to denial of service.

Memory Corruption

SAP NetWeaver Application Server ABAP
CVE-2022-22536 9.8 - Critical - February 09, 2022

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.

HTTP Request Smuggling

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
CVE-2021-38162 9.4 - Critical - September 14, 2021

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.

HTTP Request Smuggling

SAP Web Dispatcher and Internet Communication Manager (ICM)
CVE-2021-33683 4.3 - Medium - July 14, 2021

SAP Web Dispatcher and Internet Communication Manager (ICM), versions - KRNL32NUC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL32UC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL64NUC 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, KRNL64UC 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, 7.53, 7.73, WEBDISP 7.53, 7.73, 7.77, 7.81, 7.82, 7.83, KERNEL 7.21, 7.22, 7.49, 7.53, 7.73, 7.77, 7.81, 7.82, 7.83, process invalid HTTP header. The incorrect handling of the invalid Transfer-Encoding header in a particular manner leads to a possibility of HTTP Request Smuggling attack. An attacker could exploit this vulnerability to bypass web application firewall protection, divert sensitive data such as customer requests, session credentials, etc.

HTTP Request Smuggling