CVE-2026-23687

HIGH
2026-02-10 [email protected]
8.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
CVE Published
Feb 10, 2026 - 04:16 nvd
HIGH 8.8

Tags

Sap Sap Basis

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.

Analysis

Sap Basis versions up to 700 is affected by improper verification of cryptographic signature (CVSS 8.8).

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Remediation

Within 24 hours: Inventory all SAP Basis installations and identify systems running version 700 or earlier; notify SAP support and begin emergency patching assessment. Within 7 days: Implement network segmentation to isolate affected SAP systems; enable enhanced logging and monitoring for suspicious signature verification failures; restrict administrative access. …

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Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +44
POC: 0

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CVE-2026-23687 vulnerability details – vuln.today
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