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SAP released its September 2026 security updates, led by CVE-2026-44756 (OVERPASS), a CVSS 10.0 memory-corruption vulnerability in Extended Passport Processing (EPP). The flaw results from inadequate boundary validation while deserializing EPP data in shared SAP kernel code; a crafted malformed EPP header can trigger unsafe memory handling. An unauthenticated remote attacker may execute operating-system commands with SAP privileges, access secrets and active sessions, and alter SAP data, configuration, or binaries before standard authorization controls apply.
The vulnerable code can be reached through web requests, SAP GUI, and RFC connections, making both internet-facing and internally exposed SAP environments relevant. SAP issued Security Note 3747649 and also published fixes for other critical issues affecting NetWeaver and multitenant Cloud Application Programming Model applications; the wider advisory covers several SAP products, including NetWeaver Message Server, GUI for Java, Integration Suite, and ABAP platforms. Organizations should promptly apply the supported kernel correction and all applicable September patches, then validate affected systems; no active exploitation of CVE-2026-44756 had been reported.
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The Canadian Centre for Cyber Security issued advisory AV26-894 warning that multiple SAP products, including EPP, NetWeaver, CAP, SAP GUI for Java, and Integration Suite components, were affected. It advised users and administrators to review SAP's September Security Patch Day information and apply applicable updates.
SAP released Security Note 3747649 to remediate CVE-2026-44756 in affected SAP kernel, Web Dispatcher, and related releases. The correction addresses vulnerable EPP processing reachable via web, SAP GUI, and RFC communication paths.
CVE-2026-44756 was publicly published as a CVSS 10.0 memory-corruption flaw in SAP Extended Passport Processing. The flaw can be triggered by malformed EPP data and may permit unauthenticated remote code execution with SAP system privileges; no active exploitation was observed at the time.
During its September 2026 Patch Day, SAP updated Security Note 3771065 for CVE-2026-58231, a CVSS 10.0 improper-authorization vulnerability in the SAP Commerce Cloud Data Hub Adapter that had initially been released in August. SAP stated that unmodified SAP Commerce Cloud environments are not exposed to the flaw by default.
SAP's September 2026 patch cycle delivered 20 new or updated security notes, including fixes for critical NetWeaver missing-authentication flaw CVE-2026-58240, CAP credential-disclosure flaw CVE-2026-76969, and NetWeaver access-control flaw CVE-2026-66768.
CVE-2026-44756, later designated OVERPASS by Onapsis, was reserved.
SAP released fixes for CVE-2026-58243, which could let attackers gain elevated privileges in SAP ABAP Developer Tools, and CVE-2026-2332, which could cause information disclosure in SAP Commerce Cloud.
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SAP released its June Security Patch Day updates to fix multiple vulnerabilities across products including **SAP NetWeaver AS ABAP**, **ABAP Platform**, **SAP NetWeaver Application Server Java**, **SAP Commerce Cloud**, **SAP Data Hub**, **SAP S/4HANA**, **SAP Business Objects Business Intelligence Platform**, and **SAP Fiori launchpad**. The issues could allow cross-site scripting, denial of service, email spoofing, sensitive information disclosure, privilege escalation, data manipulation, arbitrary code execution, and unauthorized access. The most severe flaws include **`CVE-2026-44748`**, an XML Signature Wrapping weakness in SAML authentication affecting SAP NetWeaver AS ABAP and ABAP Platform with a **CVSS 9.9**, and **`CVE-2026-40128`**, a directory traversal vulnerability in the SAP NetWeaver Application Server Java Web Container rated **CVSS 9.0**. EG-FinCIRT said organizations should apply the patches as soon as testing is complete to reduce exposure across affected SAP environments.
Jul 12, 2026
SAP released multiple security updates addressing critical vulnerabilities across core enterprise products, including **SAP NetWeaver**, **SAP S/4HANA**, **SAP Commerce Cloud**, **SAP Business Warehouse**, **SAP Business Planning and Consolidation**, **SAP Kernel**, **ABAP Platform**, **SAP NetWeaver Application Server Java**, and **SAP Forecasting & Replenishment**. The fixes covered at least 15 vulnerabilities in both the April-to-June advisories, with several flaws rated **critical** and carrying CVSS scores from **9.0 to 9.9**. Reported impacts included **SQL injection**, **remote code execution**, **operating system command execution**, **directory traversal**, **memory corruption**, **sensitive data exposure**, **denial of service**, privilege abuse, and potential full compromise of confidentiality, integrity, and availability. Among the most severe issues, **CVE-2026-27681** affected SAP Business Planning and Consolidation and SAP Business Warehouse, allowing a low-privileged authenticated attacker to upload a file containing SQL commands and execute arbitrary database operations; SAP said a temporary mitigation was to revoke the `S_GUI` authorization object with Activity 60 (Upload) where possible. Additional high-risk flaws included **CVE-2026-34260** and **CVE-2026-34263** in SAP S/4HANA, SAP Commerce Cloud, and SAP Forecasting & Replenishment, each scored **9.6**, as well as critical June issues in NetWeaver-related components that could enable unauthorized access, file-processing abuse, and system compromise. SAP and national defenders urged organizations to apply vendor-specified patches immediately.
Jul 24, 2026
SAP has released security updates addressing 13 newly identified vulnerabilities across its product suite, with particular focus on a maximum-severity flaw in SAP NetWeaver AS Java. The most critical vulnerability, tracked as CVE-2025-42944 and assigned a CVSS score of 10.0, is an insecure deserialization issue that allows unauthenticated attackers to execute arbitrary operating system commands. This flaw can be exploited via the RMI-P4 module by submitting a malicious payload to an open port, potentially compromising the confidentiality, integrity, and availability of affected systems. SAP initially addressed this vulnerability in a previous update, but the latest patch introduces additional hardening measures, including a JVM-wide filter (jdk.serialFilter) to block the deserialization of dangerous classes. The list of classes and packages to be filtered was developed in collaboration with the Onapsis Research Labs and is divided into mandatory and optional sections to maximize protection. In addition to CVE-2025-42944, SAP has patched a directory traversal vulnerability in SAP Print Service (CVE-2025-42937, CVSS 9.8), which could allow unauthenticated attackers to overwrite system files by exploiting insufficient path validation. Another critical issue, CVE-2025-42910 (CVSS 9.0), affects SAP Supplier Relationship Management and involves unrestricted file upload, enabling authenticated attackers to upload arbitrary files, including potentially malicious executables. These vulnerabilities collectively pose significant risks to enterprise environments running SAP solutions, as successful exploitation could lead to system compromise, data loss, or service disruption. SAP has stated that there is currently no evidence of these vulnerabilities being exploited in the wild. Security experts and SAP have emphasized the importance of promptly applying the latest patches to mitigate the risk of exploitation. The additional hardening for the deserialization flaw is particularly notable, as it provides a more robust defense against a class of attacks that have historically been difficult to fully remediate. Organizations are advised to review their SAP deployments, ensure all relevant updates are applied, and follow SAP’s guidance on blocking risky deserialization classes. The disclosure and remediation of these vulnerabilities highlight the ongoing challenges in securing complex enterprise software platforms. SAP’s collaboration with security researchers and the implementation of layered defenses demonstrate a proactive approach to addressing critical security issues. Enterprises relying on SAP NetWeaver and related products should prioritize these updates as part of their regular patch management processes. Failure to address these vulnerabilities could leave systems exposed to remote attacks that require no authentication, significantly increasing the risk profile for affected organizations. The security community continues to monitor for any signs of exploitation and urges vigilance in maintaining up-to-date SAP environments.
Jun 29, 2026