SB2026111101 - Multiple vulnerabilities in SAP NetWeaver AS ABAP

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026111101

SB2026111101 - Multiple vulnerabilities in SAP NetWeaver AS ABAP

Published: November 11, 2026

Security Bulletin ID SB2026111101
CSH Severity
Critical
Patch available
YES
Number of vulnerabilities 13
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Critical 23% High 8% Medium 54% Low 15%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 13 vulnerabilities.


1) Cryptographic issues (CVE-ID: CVE-2026-109805)

CWE-ID: CWE-310 - Cryptographic Issues

CVSSv4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to perform MitM attack.

The vulnerability exists due to weak cryptography. A remote privileged user with access to a network segment between application servers on an SAP system could intercept network communication between application servers and change the identity of the caller, enabling the execution of unauthorized function calls on the target server with escalated privileges.


2) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-109811)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N]


The disclosed vulnerability allows a remote user to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input. A remote user can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.


3) Input validation error (CVE-ID: CVE-2026-109802)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote user can send specially crafted requests to trigger an error in internal processing and perform a denial of service (DoS) attack.


4) Code injection (CVE-ID: CVE-2026-120009)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation within the SAP ABAP Developer Tools (AMDP Data Preview). A remote privileged user can send a specially crafted request and execute arbitrary code on the target system.


5) Resource management error (CVE-ID: CVE-2026-109794)

CWE-ID: CWE-399 - Resource Management Errors

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


6) Buffer overflow (CVE-ID: CVE-2026-76973)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error when handling requests. A remote attacker can send specially crafted requests to the server, trigger memory corruption and crash the server. 


7) Buffer overflow (CVE-ID: CVE-2026-76970)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error when handling requests. A remote attacker can send specially crafted requests to the server, trigger memory corruption and crash the server. 


8) Input validation error (CVE-ID: CVE-2026-109793)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied header values. A remote attacker can send specially crafted HTTP request to the server and perform a denial of service (DoS) attack.


9) Improper initialization (CVE-ID: CVE-2026-109796)

CWE-ID: CWE-665 - Improper Initialization

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to improper memory initialization. A remote attacker can send specially crafted request to disclose uninitialized memory contents.


10) Buffer overflow (CVE-ID: CVE-2026-76966)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 9.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L]


The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper RFC protocol validation in the SAP Kernel. A remote attacker can send crafted RFC request that exploits logical errors in memory management, leading to memory corruption.


11) OS command injection (CVE-ID: CVE-2026-76965)

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSSv4: 9.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H]


The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation. A remote low-privileged user can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


12) Improper authentication (CVE-ID: CVE-2026-120017)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: 10 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H]


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error when processing authentication requests within the SAML2 Service Provider. A remote attacker can bypass authentication process and gain unauthorized access to the application.

Successful exploitation of the vulnerability may lead to system compromise. 


13) Buffer overflow (CVE-ID: CVE-2026-76964)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: 10 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H]


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary within the Internet Communication Manager. A remote attacker can send specially crafted HTTP request to the server, trigger memory corruption and execute arbitrary code on the target system.



Remediation

Install update from vendor's website.

References