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SAP NetWeaver CVE-2026-58241

| EUVDEUVD-2026-55872 MEDIUM
Missing Authorization (CWE-862)
2026-08-11 sap GHSA-wv3v-879g-qxpm
4.2
CVSS 3.1 · Vendor: sap
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate as low-privileged SAP user
  2. Delivery
    Access CTS Customer Transport Integration Wizard
  3. Exploit
    Wait for or trigger specific wizard operation state
  4. Execution
    Exploit missing authorization check
  5. Persist
    Write unauthorized changes to transport configuration tables
  6. Impact
    Cause processing delays or disrupt transport workflows

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires: (1) a valid low-privileged SAP user account with at least basic access to the CTS Customer Transport Integration Wizard (PR:L per CVSS vector); (2) the attack must occur during specific operations within the wizard - the AC:H metric explicitly indicates that a special condition or operational state must be present, meaning the attack cannot be reliably triggered on demand against an idle system. No victim user interaction is required (UI:N). Limiting factors: the High Attack Complexity (AC:H) is the primary constraint - exploitation is not straightforwardly repeatable and requires timing or specific system state; organizations that restrict CTS wizard access strictly to dedicated transport administrators via SAP authorization roles eliminate the attack surface entirely; no confidentiality impact means data exfiltration is not a concern; the Unchanged scope (S:U) means lateral movement or impact to adjacent systems is not a realistic outcome from this flaw alone.

Impact

The vendor-assigned CVSS 4.2 (Medium) with vector AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L accurately reflects the constrained real-world risk. The High Attack Complexity (AC:H) is the most significant limiting factor: exploitation is only possible during specific operational states of the CTS wizard, meaning the attack cannot be reliably automated or opportunistically triggered at will. Low privileges (PR:L) further reduce the attack surface to authenticated SAP users with CTS access. No EPSS score was provided in the input data, so probabilistic exploitation likelihood cannot be quantified from this dataset. The vulnerability is not listed in the CISA KEV catalog, and no public exploit code has been identified, aligning with the modest CVSS score. The impact is bounded - confidentiality is entirely unaffected, and the integrity and availability impacts are low (configuration table tampering leading to transport delays, not system compromise). For most organizations, this is a genuine but low-urgency patching item; organizations with strict change control requirements or high-volume SAP transport activity may assign higher operational priority due to potential process disruption.

Exploit ScenarioDerived

A low-privileged SAP user with standard system access authenticates to the SAP environment and navigates to the Change and Transport System's Customer Transport Integration Wizard. During a specific operational phase of the wizard - the precise trigger condition implied by the AC:H metric - the user exploits the missing authorization check to write to configuration tables governing data object access, potentially misconfiguring transport routes or access permissions. The result is processing delays or operational disruption to the change management pipeline, though no data can be extracted and the attacker cannot escalate to further system compromise.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Aug 11, 2026

Unauthorized configuration table modification in SAP NetWeaver and ABAP Platform's Change and Transport System (CTS) Customer Transport Integration Wizard allows a low-privileged authenticated user to alter access controls for data objects during specific wizard operations. Affected SAP_BASIS releases span from 740 through 816, covering a broad range of enterprise SAP landscapes. The practical impact is limited to processing delays and operational disruption (low integrity and availability), with no confidentiality exposure; no public exploit has been identified and this vulnerability is not listed in the CISA KEV catalog.

RemediationAI

Apply the SAP-released correction documented in SAP Security Note 3752864 (https://me.sap.com/notes/3752864); the exact patched SAP_BASIS version is not independently confirmed from the available input data - consult the note directly for the specific Support Package level or hotfix. Guidance is also available via SAP Security Patch Day (https://url.sap/sapsecuritypatchday). As a compensating control prior to patching, restrict access to the CTS Customer Transport Integration Wizard by tightening SAP authorization profiles: review and limit the S_TRANSPRT authorization object and relevant CTS wizard roles to only those users who legitimately require transport administration. Removing CTS wizard access from general low-privileged roles eliminates the exploitation path entirely, with the trade-off of requiring role re-assignment for legitimate users. Additionally, enable transport audit logging to detect unauthorized configuration table modifications in the interim period before patching.

Affected VersionsENISA

SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 753
SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 757
SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 752
SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 740
SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 816
SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 758
SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 756
SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 751
SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 750
SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 755
SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard SAP_BASIS 754

Affects your stack

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

Technical ContextAI · show details

The Change and Transport System (CTS) is a foundational SAP infrastructure component that manages development changes and transports across SAP system landscapes (development, QA, production). The Customer Transport Integration Wizard is a sub-feature of CTS that streamlines transport object management. CWE-862 (Missing Authorization) is the root cause: during specific wizard operations, the system fails to enforce authorization checks on low-privileged users attempting to write to configuration tables that govern data object access. This is an authorization enforcement gap, not an authentication bypass - the 'Authentication Bypass' tag from the intelligence source is misleading. Affected CPE: cpe:2.3:a:sap_se:sap_netweaver_and_abap_platform_(change_and_transport_system_-_customer_transport_integration_wizard:*:*:*:*:*:*:*:*. All eleven SAP_BASIS releases from 740 to 816 are listed as affected per ENISA EUVD-2026-55872.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (sap) PRIMARY 4.2 MEDIUM
AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
vuln.today AI 4.2 MEDIUM

Concurs with vendor vector: network-reachable but gated on specific operational conditions (AC:H); low-privileged authenticated user required (PR:L); no confidentiality impact; limited integrity and availability impact only.

3.1 AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
4.0 AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (sap).

CVSS VectorVendor: sap

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

DescriptionCVE.org

SAP NetWeaver and ABAP Platform (Change and Transport System - Customer Transport Integration Wizard) allows a low-privileged user to modify configuration tables that control access to data objects during specific operations. These unauthorized modifications could result in processing delays and operational disruption, leading to a low impact on the integrity and availability of the application with no impact on confidentiality.

Threat Intelligence Overview

EPSS Score
0.2%
Top 95% exploitable
Prevalence
High
SAP NetWeaver underpins ERP deployments across large enterprises globally.
Data Quality
5 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 MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
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
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
High
Technical Impact
Partial

Priority Score

21
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +21
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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