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CVE-2026-0491: Critical Vulnerability in SAP Landscape Transformation

CVE-2026-0491 is a critical vulnerability in SAP Landscape Transformation that allows attackers with admin privileges to inject arbitrary code. Immediate action is essential to safeguard systems against potential compromise.

CRITICALCVSS 9.1 · Published January 13, 2026

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CVE-2026-0491 is a critical vulnerability affecting SAP Landscape Transformation. This vulnerability allows an attacker with admin privileges to exploit a flaw in the function module exposed via Remote Function Call (RFC). The vulnerability enables the injection of arbitrary ABAP code or operating system commands into the system, bypassing essential authorization checks. Consequently, this vulnerability effectively functions as a backdoor, creating the risk of full system compromise, undermining the confidentiality, integrity, and availability of the system.

With a CVSS score of 9.1, this vulnerability is classified as critical. The potential for exploitation is significant, and organizations utilizing SAP Landscape Transformation must take immediate action. The flaw's nature indicates that if left unaddressed, it poses a serious risk to organizational security and operational continuity.

As of now, this vulnerability is classified as deferred. However, organizations should remain vigilant and prioritize patching as soon as updates become available. The urgency for defenders cannot be overstated, as the implications of an exploit could be catastrophic.

Organizations should take proactive steps to mitigate the risks associated with this vulnerability and ensure their systems remain secure against potential threats.

Vulnerability Details

The official description of CVE-2026-0491 highlights the severity and impact of the vulnerability. It is classified under CWE-94, which pertains to code injection vulnerabilities. The attack vector is network-based, and the attack complexity is classified as low, allowing for easier exploitation by attackers with high privileges. The vulnerability's impacts on confidentiality, integrity, and availability are all rated as high, indicating a significant threat to affected systems.

Technical Analysis

This vulnerability arises from insufficient authorization checks within the SAP Landscape Transformation function module exposed via RFC. Attackers with admin privileges can leverage this vulnerability to execute arbitrary code, effectively compromising the entire system. The attack does not require user interaction, making it particularly dangerous. With a low complexity level, attackers can exploit this vulnerability easily, leading to high impacts on confidentiality, integrity, and availability.

Risk & Impact Analysis

Risk to organizations includes the potential for full system compromise, which could lead to unauthorized access to sensitive data and disruption of critical services. The blast radius is extensive, affecting any organization using SAP Landscape Transformation. Given the critical severity and the potential for exploitation, organizations must act swiftly to assess their exposure and plan for remediation.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

All versions prior to vendor patch are affected by this vulnerability. Organizations should assess their systems to determine if they are exposed.

Mitigation & Remediation

Organizations should prioritize patching immediately. It is crucial to monitor for updates from SAP regarding remediation and apply them as soon as they are available. Additionally, implementing robust network controls and limiting access to sensitive functions can help mitigate potential risks. For further assistance, organizations can consider penetration testing to validate security measures.

Detection Guidance

Monitoring for unusual authorization attempts and system behavior can provide indicators of potential exploitation. Organizations should establish logging mechanisms to capture relevant events and review them for anomalies. Additionally, focusing on system changes and unauthorized code execution attempts can aid in early detection.

AppSecure Threat Intelligence Insight

This vulnerability represents a critical risk in the landscape of application security, particularly in systems employing SAP technologies. Security teams should view this as an opportunity to reassess their security posture and implement stronger controls. The pattern of vulnerabilities that allow for arbitrary code execution highlights the need for stringent validation of input and regular security assessments. Organizations are encouraged to enhance their security strategies through continuous monitoring and proactive measures. For further reading on security practices, consider exploring security testing best practices and vulnerability management program design to strengthen defenses.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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