What’s Vulnerable › Vulnerabilities
CVE-2026-58240: Missing Authentication check in SAP NetWeaver (Message Server)
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-08 · updated 2026-09-09
- Weakness: CWE-308
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, 9.18, 9.19, 9.20
In the news
References
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