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Vulnerability record · CVE-2026-23687 · published 10 February 2026

CVE-2026-23687: Sap basis improper verification of cryptographic signature vulnerability

Sap · Sap Basis

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.

8.8 CVSS 3.1 High EPSS 0.48% · top 60.9% CWE-347 · Improper verification of cryptographic signature
8.8CVSS 3.1 base score
0.48%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://me.sap.com/notes/3697567 Permissions Required
https://url.sap/sapsecuritypatchday Vendor Advisory
http://seclists.org/fulldisclosure/2026/Jun/1

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-23687), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.