CVE-2025-42978: Insufficiently Secure Hostname Verification for Outbound TLS Connections in SAP NetWeaver Application Server Java
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-42978?
CVE-2025-42978 is considered a medium severity vulnerability due to its potential impact on TLS connection security.
How do I fix CVE-2025-42978?
To fix CVE-2025-42978, apply the latest security patches provided by SAP for the NetWeaver Application Server Java.
What type of vulnerability is CVE-2025-42978?
CVE-2025-42978 is a hostname verification vulnerability affecting TLS connections.
What systems are affected by CVE-2025-42978?
CVE-2025-42978 affects the SAP NetWeaver Application Server Java component.
What are the implications of CVE-2025-42978?
The implications of CVE-2025-42978 include potential security risks where attackers could exploit the vulnerability to conduct man-in-the-middle attacks.