CVE-2026-58240

Missing Authentication check in SAP NetWeaver (Message Server)

Published Sep 8, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
SAP NetWeaver Message Server does not sufficiently validate the authenticity of internal application server components during registration. An unauthenticated attacker with network access to the affected service could exploit this weakness to register an unauthorized component and potentially perform unauthorized actions within the application environment, resulting in a high impact on the confidentiality, integrity, and availability of the affected system.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Sap Se
Sap Se sap Netweaver (message Server)
Vendors & Products Sap Se
Sap Se sap Netweaver (message Server)
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description SAP NetWeaver Message Server does not sufficiently validate the authenticity of internal application server components during registration. An unauthenticated attacker with network access to the affected service could exploit this weakness to register an unauthorized component and potentially perform unauthorized actions within the application environment, resulting in a high impact on the confidentiality, integrity, and availability of the affected system.
Title Missing Authentication check in SAP NetWeaver (Message Server)
Weaknesses CWE-308
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
sap
Published
Updated
Sep 9, 2026, 4:25 AM
Reserved
Jun 29, 2026, 7:35 PM
Status
Awaiting Analysis
Published
Sep 8, 2026, 1:17 AM
Modified
Sep 9, 2026, 5:17 AM