Vulnerability Report

CVE-2026-23687

Title: Improper signature validation in SAP NetWeaver Application Server ABAP and ABAP Platform

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2026-23687.

CWE Category CWE-347
Published Date Feb 10, 2026
Modified Date Jun 09, 2026
Exploit Status Not Found
Score 8.8 CVSS v3.1
Exploit Probability (EPSS)
0.48%

Vulnerability Summary

CVE-2026-23687: 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.

Impacted Vendors

S
sap 1

Reference Links

https://me.sap.com/notes/3697567 https://url.sap/sapsecuritypatchday
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-23687 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.