CVE-2025-42978

Insufficiently Secure Hostname Verification for Outbound TLS Connections in SAP NetWeaver Application Server Java

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.

Category

3.5
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.01%
Affected: SAP_SE SAP NetWeaver Application Server Java
Published at:
Updated at:

References

Link Tags
https://me.sap.com/notes/3557179
https://url.sap/sapsecuritypatchday

Frequently Asked Questions

What is the severity of CVE-2025-42978?
CVE-2025-42978 has been scored as a low severity vulnerability.
How to fix CVE-2025-42978?
To fix CVE-2025-42978, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-42978 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-42978 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-42978?
CVE-2025-42978 affects SAP_SE SAP NetWeaver Application Server Java.
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