CVE-2026-23687
Signed XML Message Forgery in SAP NetWeaver ABAP Enables Unauthorized Access
Publication date: 2026-02-10
Last updated on: 2026-02-17
Assigner: SAP SE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| sap | sap_basis | 700 |
| sap | sap_basis | 701 |
| sap | sap_basis | 702 |
| sap | sap_basis | 731 |
| sap | sap_basis | 740 |
| sap | sap_basis | 750 |
| sap | sap_basis | 751 |
| sap | sap_basis | 752 |
| sap | sap_basis | 753 |
| sap | sap_basis | 754 |
| sap | sap_basis | 755 |
| sap | sap_basis | 756 |
| sap | sap_basis | 757 |
| sap | sap_basis | 758 |
| sap | sap_basis | 804 |
| sap | sap_basis | 916 |
| sap | sap_basis | 917 |
| sap | sap_basis | 918 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-347 | The product does not verify, or incorrectly verifies, the cryptographic signature for data. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in SAP NetWeaver Application Server ABAP and ABAP Platform. It allows an authenticated attacker with normal user privileges to obtain a valid signed message and then send modified signed XML documents to the system verifier.
As a result, the system may accept tampered identity information, which means the attacker can potentially bypass security checks by presenting altered but seemingly valid credentials or data.
How can this vulnerability impact me? :
The impact of this vulnerability includes unauthorized access to sensitive user data, as the attacker can manipulate signed messages to gain access they should not have.
Additionally, it may cause disruption of normal system usage, potentially affecting availability and integrity of the system.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know