CVE-2026-23687 — HIGH (8.8)

Vulnerability Description

SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modified signed XML documents to the verifier. This may result in acceptance of tampered identity information, unauthorized access to sensitive user data and potential disruption of normal system usage.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Sap	Sap Basis	700

Related Weaknesses (CWE)

CWE-347

References

https://me.sap.com/notes/3697567Permissions Required
https://url.sap/sapsecuritypatchdayVendor Advisory

FAQ

What is CVE-2026-23687?

CVE-2026-23687 is a vulnerability with a CVSS score of 8.8 (HIGH). SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modified signed XML documents to the verifier....

How severe is CVE-2026-23687?

CVE-2026-23687 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-23687?

Check the references section above for vendor advisories and patch information. Affected products include: Sap Sap Basis.