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CVE-2025-42978— Insufficiently Secure Hostname Verification for Outbound TLS Connections in SAP NetWeaver Application Server Java

Quick assessment

Affected
SAP_SE SAP NetWeaver Application Server Java
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 Application Server Java是德国思爱普（SAP）公司的一款提供了Java运行环境的应用程序服务器。该产品主要用于开发和运行Java EE应用程序。 SAP NetWeaver Application Server Java存在安全漏洞，该漏洞源于TLS连接主机名匹配不可靠，可能导致信息泄露。

CVSS 3.5 · Low EPSS 0.14% · P2

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2025-42978

Vulnerability Information
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Vulnerability Title
Insufficiently Secure Hostname Verification for Outbound TLS Connections in SAP NetWeaver Application Server Java
Source: CVE Program / CVE List V5
Vulnerability Description
The widely used component that establishes outbound TLS connections in SAP NetWeaver Application Server Java does not reliably match the hostname that is used for the connection against the wildcard hostname defined in the received certificate of remote TLS server. This might lead to the outbound connection being established to a possibly malicious remote TLS server and hence disclose information. Integrity and Availability are not impacted.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通信信道源的不正确验证
Source: CVE Program / CVE List V5
Vulnerability Title
SAP NetWeaver Application Server Java 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SAP NetWeaver Application Server Java是德国思爱普（SAP）公司的一款提供了Java运行环境的应用程序服务器。该产品主要用于开发和运行Java EE应用程序。 SAP NetWeaver Application Server Java存在安全漏洞，该漏洞源于TLS连接主机名匹配不可靠，可能导致信息泄露。
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 Application Server Java ENGINEAPI 7.50 -

II. Public POCs for CVE-2025-42978

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III. Intelligence Information for CVE-2025-42978

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Same Patch Batch · SAP_SE · 2025-07-08 · 27 CVEs total

CVE-2025-42967 9.9 CRITICAL Code Injection vulnerability in SAP S/4HANA and SAP SCM (Characteristic Propagation)
CVE-2025-42963 9.1 CRITICAL Insecure Deserialization in SAP NetWeaver Application Server for Java (Log Viewer )
CVE-2025-42980 9.1 CRITICAL Insecure Deserialization in SAP NetWeaver Enterprise Portal Federated Portal Network
CVE-2025-42964 9.1 CRITICAL Insecure Deserialization in SAP NetWeaver Enterprise Portal Administration
CVE-2025-42966 9.1 CRITICAL Insecure Deserialization vulnerability in SAP NetWeaver (XML Data Archiving Service)
CVE-2025-42953 8.1 HIGH Missing Authorization check in SAP NetWeaver Application Server for ABAP
CVE-2025-42959 8.1 HIGH Missing Authentication check after implementation of SAP Security Note 3007182 and 3537476
CVE-2025-42952 7.7 HIGH Missing Authorization check in SAP Business Warehouse and SAP Plug-In Basis
CVE-2025-42992 6.9 MEDIUM Multiple Privilege Escalation Vulnerabilities in SAPCAR
CVE-2025-43001 6.9 MEDIUM Multiple Privilege Escalation Vulnerabilities in SAPCAR
CVE-2025-42969 6.1 MEDIUM Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver Application Server ABAP and ABAP
CVE-2025-42985 6.1 MEDIUM Open Redirect vulnerability in SAP BusinessObjects Content Administrator workbench
CVE-2025-42962 6.1 MEDIUM Cross-Site Scripting (XSS) vulnerability in SAP Business Warehouse (Business Explorer Web
CVE-2025-42981 6.1 MEDIUM Multiple vulnerabilities in SAP NetWeaver Application Server ABAP
CVE-2025-42970 5.8 MEDIUM Directory Traversal vulnerability in SAPCAR
CVE-2025-42979 5.6 MEDIUM Insecure Key & Secret Management vulnerability in SAP GUI for Windows
CVE-2025-42973 5.4 MEDIUM Cross-Site Scripting (XSS) vulnerability in SAP Data Services (DQ Report)
CVE-2025-42968 5.0 MEDIUM Missing Authorization check in SAP NetWeaver (RFC enabled function module)
CVE-2025-42961 4.9 MEDIUM Missing Authorization check in SAP NetWeaver Application Server for ABAP
CVE-2025-42974 4.3 MEDIUM Missing Authorization Check in SAP NetWeaver and ABAP Platform (SDCCN)

Showing top 20 of 27 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: SAP NetWeaver Application Server Java
Same vendor: SAP_SE
Same weakness: CWE-940

V. Comments for CVE-2025-42978

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