# CVE-2026-58240

## Summary

- **CVE ID:** CVE-2026-58240
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-308
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 9, 2026

## 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.

## Affected Products

- SAP_SE — SAP NetWeaver (Message Server) (KERNEL 9.16)
- SAP_SE — SAP NetWeaver (Message Server) (9.18)
- SAP_SE — SAP NetWeaver (Message Server) (9.19)
- SAP_SE — SAP NetWeaver (Message Server) (9.20)

## References

- [CNA](https://me.sap.com/notes/3759472)
- [CNA](https://url.sap/sapsecuritypatchday)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.34%
- **EPSS Percentile:** 27.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._