CVE-2026-58240Missing Authentication check in SAP NetWeaver (Message Server)
Updated under an hour ago ()
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It affects SAP_SE SAP NetWeaver (Message Server). Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-308
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- sap
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 9, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
SAP_SE SAP NetWeaver (Message Server) sap_se:sap_netweaver_message_server (from the name) | KERNEL 9.16; 9.18; 9.19; 9.20 | CNA record |
References
- https://me.sap.com/notes/3759472
- https://url.sap/sapsecuritypatchday
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.