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EUVDEUVD-2025-20350

| CVE-2025-42959 HIGH
Use of Single-factor Authentication (CWE-308)
2025-07-08 cna@sap.com
8.1
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Multi-factor authentication
Impact

CVSS 8.1. EPSS 0.1%. No patch confirmed.

Exploit ScenarioDerived

An attacker could exploit this vulnerability in An unauthenticated attacker may exploit a scenario where a to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 16, 2026

A security vulnerability in An unauthenticated attacker may exploit a scenario where a (CVSS 8.1). High severity vulnerability requiring prompt remediation.

Earlier versions of this analysis (1)
v1 Mar 16, 2026 - 04:21 CVSS 8.1

An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack

RemediationAI

Monitor vendor channels for patch availability.

Affected VersionsENISA

SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 753
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 754
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 731
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 752
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 750
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 751
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 700
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 915
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 755
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 702
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 701
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 757
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 758
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 740
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 756
SAP NetWeaver ABAP Server and ABAP Platform SAP_BASIS 914

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Vulnerability type not specified by vendor. CVSS 8.1 indicates high severity. Affects An unauthenticated attacker may exploit a scenario where a.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.1 HIGH
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

An unauthenticated attacker may exploit a scenario where a Hashed Message Authentication Code (HMAC) credential, extracted from a system missing specific security patches, is reused in a replay attack against a different system. Even if the target system is fully patched, successful exploitation could result in complete system compromise, affecting confidentiality, integrity, and availability.

Executive ViewAI

Why It Matters

Organizations using An unauthenticated attacker may exploit a scenario where a face notable risk from CVE-2025-42959 rated CVSS 8.1. Successful exploitation could significantly impact the confidentiality, integrity, or availability of affected systems. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: High
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score
0.1%
Top 70% exploitable
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +40
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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