Skip to main content

Netweaver Application Server Abap CVE-2026-0506

HIGH
Missing Authorization (CWE-862)
2026-01-13 cna@sap.com
8.1
CVSS 3.1 · NVD
View

Attack ChainAIDerived

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

  1. Access
    Authenticate to ABAP system
  2. Delivery
    Call RFC function with FORM invocation
  3. Exploit
    Bypass authorization check
  4. Execution
    Execute arbitrary FORM routines
  5. Impact
    Modify data and system state

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

Authenticated user account on SAP Application Server ABAP or ABAP Platform with network access to RFC interface. Requires valid credentials (PR:L) but no special system configuration or privilege level beyond basic user authentication.

Impact

CVSS 8.1 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitation requires authentication.

Exploit ScenarioDerived

An attacker (requires authentication) could exploit this vulnerability to write or modify data accessible via FORMs and invoke system functionality expose.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Mar 12, 2026

Netweaver Application Server Abap versions up to 700 is affected by missing authorization (CVSS 8.1).

RemediationAI

A vendor patch is available — apply it immediately. Restrict network access to the affected service where possible.

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

This vulnerability (CWE-862: Missing Authorization) exists in the FORMs and invoke system component. Due to a Missing Authorization Check vulnerability in Application Server ABAP and ABAP Platform, an authenticated attacker could misuse an RFC function to execute form routines (FORMs) in the ABAP system. Successful exploitation could allow the attacker to write or modify data accessible via FORMs and invoke system functionality exposed via FORMs, resulting in a high impact on integrity and availability, while confidentiality remains unaffected.

Know when Netweaver Application Server Abap gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Lifecycle Timeline

2
Patch released
Jan 22, 2026 - 18:48 nvd
Patch available
CVE Published
Jan 13, 2026 - 02:15 nvd
HIGH 8.1

DescriptionCVE.org

Due to a Missing Authorization Check vulnerability in Application Server ABAP and ABAP Platform, an authenticated attacker could misuse an RFC function to execute form routines (FORMs) in the ABAP system. Successful exploitation could allow the attacker to write or modify data accessible via FORMs and invoke system functionality exposed via FORMs, resulting in a high impact on integrity and availability, while confidentiality remains unaffected.

Executive ViewAI

Why It Matters

CVE-2026-0506 presents notable security risk, a missing authorization vulnerability rated CVSS 8.1. Attackers could bypass security controls to gain unauthorized access to protected resources and sensitive data. A patch is available and should be applied as part of regular vulnerability management.

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 85% exploitable
Data Quality
3 sources
Confidence: Low

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 Yes
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

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

Affected Products (CPE)CVE.org

cpe:2.3:a:sap:netweaver_application_server_abap:700:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:701:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:702:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:731:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:740:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:750:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:751:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:752:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:753:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:754:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:755:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:756:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:757:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:758:*:*:*:sap_basis:*:*:*
cpe:2.3:a:sap:netweaver_application_server_abap:816:*:*:*:sap_basis:*:*:*
CVE-2020-26832 HIGH POC
7.6 Dec 09

SAP AS ABAP (SAP Landscape Transformation), versions - 2011_1_620, 2011_1_640, 2011_1_700, 2011_1_710, 2011_1_730, 2011_

CVE-2021-33678 MEDIUM POC
6.5 Jul 14

A function module of SAP NetWeaver AS ABAP (Reconciliation Framework), versions - 700, 701, 702, 710, 711, 730, 731, 740

CVE-2021-21473 MEDIUM POC
6.3 Jun 09

SAP NetWeaver AS ABAP and ABAP Platform, versions - 700, 702, 710, 711, 730, 731, 740, 750, 751, 752, 753, 754, 755, con

CVE-2026-0488 CRITICAL
9.9 Feb 10

Unauthorized code execution in SAP CRM and SAP S/4HANA Scripting Editor. Authenticated attacker exploits generic functio

CVE-2023-40309 CRITICAL
9.8 Sep 12

SAP CommonCryptoLib does not perform necessary authentication checks, which may result in missing or wrong authorization

CVE-2023-0014 CRITICAL
9.8 Jan 10

SAP NetWeaver ABAP Server and ABAP Platform - versions SAP_BASIS 700, 701, 702, 710, 711, 730, 731, 740, 750, 751, 752,

CVE-2021-44231 CRITICAL
9.8 Dec 14

Internally used text extraction reports allow an attacker to inject code that can be executed by the application. Rated

CVE-2021-40499 CRITICAL
9.8 Oct 12

Client-side printing services SAP Cloud Print Manager and SAPSprint for SAP NetWeaver Application Server for ABAP - vers

CVE-2021-27610 CRITICAL
9.8 Jun 16

SAP NetWeaver ABAP Server and ABAP Platform, versions - 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 804, does

CVE-2020-6275 CRITICAL
9.8 Jun 10

SAP Netweaver AS ABAP, versions 700, 701, 702, 710, 711, 730, 731, 740, 750, 751, 752, 753, 754, are vulnerable for Serv

CVE-2023-27501 CRITICAL
9.6 Mar 14

SAP NetWeaver AS for ABAP and ABAP Platform - versions 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 756, 757,

CVE-2023-27269 CRITICAL
9.6 Mar 14

SAP NetWeaver Application Server for ABAP and ABAP Platform - versions 700, 701, 702, 731, 740, 750, 751, 752, 753, 754,

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy