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CVE-2025-26661— Missing Authorization check in SAP NetWeaver (ABAP Class Builder)

Quick assessment

Affected
SAP_SE SAP NetWeaver (ABAP Class Builder)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SAP NetWeaver ABAP Server是德国思爱普（SAP）公司的一个用作 SAP 产品的 Web 应用程序服务器。 SAP NetWeaver ABAP Server存在安全漏洞，该漏洞源于缺少授权检查，可能导致权限提升和信息泄露。

CVSS 8.8 · High EPSS 0.42% · P33

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2025-26661

Vulnerability Information
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Vulnerability Title
Missing Authorization check in SAP NetWeaver (ABAP Class Builder)
Source: CVE Program / CVE List V5
Vulnerability Description
Due to missing authorization check, SAP NetWeaver (ABAP Class Builder) allows an attacker to gain higher access levels than they should have, resulting in escalation of privileges. On successful exploitation, this could result in disclosure of highly sensitive information. It could also have a high impact on the integrity and availability of the application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
SAP NetWeaver ABAP Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SAP NetWeaver ABAP Server是德国思爱普（SAP）公司的一个用作 SAP 产品的 Web 应用程序服务器。 SAP NetWeaver ABAP Server存在安全漏洞，该漏洞源于缺少授权检查，可能导致权限提升和信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
SAP_SE SAP NetWeaver (ABAP Class Builder) SAP_BASIS 700 -

II. Public POCs for CVE-2025-26661

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III. Intelligence Information for CVE-2025-26661

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Other References for CVE-2025-26661 (1)

Same Patch Batch · SAP_SE · 2025-03-11 · 20 CVEs total

CVE-2025-27434 8.8 HIGH Cross-Site Scripting (XSS) vulnerability in SAP Commerce (Swagger UI)
CVE-2025-26658 6.8 MEDIUM Broken Authentication in SAP Business One (Service Layer)
CVE-2025-25242 6.1 MEDIUM Cross-Site Scripting (XSS) in SAP NetWeaver Application Server ABAP
CVE-2025-26659 6.1 MEDIUM Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP (applica
CVE-2025-25244 5.7 MEDIUM Missing Authorization Check in SAP Business Warehouse (Process Chains)
CVE-2025-25245 5.4 MEDIUM Cross-Site Scripting (XSS) vulnerability in SAP BusinessObjects Business Intelligence Plat
CVE-2025-27431 5.4 MEDIUM Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server Java
CVE-2025-23194 5.3 MEDIUM Missing Authentication check in SAP NetWeaver Enterprise Portal (OBN component)
CVE-2025-0071 4.9 MEDIUM Information Disclosure vulnerability in SAP Web Dispatcher and Internet Communication Mana
CVE-2025-0062 4.7 MEDIUM Cross-Site Scripting (XSS) vulnerability in SAP BusinessObjects Business Intelligence Plat
CVE-2025-27436 4.3 MEDIUM Broken Access Control vulnerabilities in SAP S/4HANA (Manage Bank Statements)
CVE-2025-27433 4.3 MEDIUM Broken Access Control vulnerabilities in SAP S/4HANA (Manage Bank Statements)
CVE-2025-26660 4.3 MEDIUM Broken Access Control in SAP Fiori apps (Posting Library)
CVE-2025-26656 4.3 MEDIUM Missing Authorization check in S/4HANA (Manage Purchasing Info Records)
CVE-2025-23188 4.3 MEDIUM Missing Authorization check in SAP S/4HANA (RBD)
CVE-2025-23185 4.1 MEDIUM Information Disclosure in SAP Business Objects Business Intelligence Platform
CVE-2025-27430 3.5 LOW Server Side Request Forgery (SSRF) in SAP CRM and SAP S/4 HANA (Interaction Center)
CVE-2025-26655 3.1 LOW Missing Authorization check in SAP JIT(Outbound)
CVE-2025-27432 2.4 LOW Missing Authorization check in SAP Electronic Invoicing for Brazil (eDocument Cockpit)

IV. Related Vulnerabilities

Same vendor: SAP_SE
Same weakness: CWE-862

V. Comments for CVE-2025-26661

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