CVE-2025-42978

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

Published Jul 8, 2025 CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
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.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-20335 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.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Insufficiently Secure Hostname Verification for Outbound TLS Connections in SAP NetWeaver Application Server Java
Weaknesses CWE-940
References
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N'}

Subscriptions

No data.

Weaknesses
  • CWE-940

    Improper Verification of Source of a Communication Channel

Sources

Status
PUBLISHED
Assigner
sap
Published
Updated
Jul 8, 2025, 6:14 PM
Reserved
Apr 16, 2025, 1:25 PM
Status
Deferred
Published
Jul 8, 2025, 1:15 AM
Modified
Jun 17, 2026, 9:23 AM