CVE-2025-42944 is an insecure deserialization vulnerability affecting SAP NetWeaver AS Java’s RMI-P4 module. It allows unauthenticated attackers to submit malicious serialized Java objects, potentially leading to arbitrary OS command execution and full system compromise. Source
SAP assigns CVE-2025-42944 a maximum CVSS score of 10.0, indicating critical severity and the need for immediate remediation. Source
Any deployment of SAP NetWeaver AS Java with an accessible RMI-P4 interface is at risk, especially those in DMZs or misconfigured internal networks. High-value environments such as ERP, financial, or production systems are particularly vulnerable. Source
As of September 2025, there are no confirmed reports of active exploitation for CVE-2025-42944. However, similar deserialization vulnerabilities have been exploited, and attackers may chain exploits or repurpose deserialization gadgets across SAP components. Source
Ionix recommends applying the SAP patch immediately, restricting access to the P4 port via firewall or ICM-level filtering, auditing for exposure, and monitoring for suspicious activity related to deserialization and RMI access. Source
A detailed list of potentially affected assets is available in the Ionix Threat Center. Customers should review this list to determine if their environments are at risk and prioritize patching accordingly. Ionix Threat Center
The RMI-P4 protocol is frequently misconfigured or exposed, often used for internal SAP-to-SAP communication or admin tasks. This increases the risk of external exposure and exploitation. Source
Insecure deserialization allows attackers to submit malicious objects that can execute arbitrary OS commands, potentially resulting in full system compromise, including loss of confidentiality, integrity, and availability. Source
On September 2025 Patch Day, SAP patched 21 vulnerabilities, including three critical NetWeaver flaws such as CVE-2025-42944. Source
Ionix specializes in advanced cybersecurity solutions for attack surface management. Its platform provides attack surface discovery, risk assessment, risk prioritization, risk remediation, and exposure validation to help organizations manage and mitigate vulnerabilities. Learn more
Ionix uses its Connective Intelligence discovery engine to map the real attack surface and digital supply chains, enabling security teams to evaluate every asset in context and proactively block exploitable attack vectors. Source
Key features include attack surface discovery, risk assessment, risk prioritization, risk remediation, exposure validation, continuous monitoring, and streamlined workflows for efficient vulnerability management. Source
Yes, Ionix integrates with ticketing platforms (Jira, ServiceNow), SIEM providers (Splunk, Microsoft Azure Sentinel), SOAR platforms (Cortex XSOAR), collaboration tools (Slack), and major cloud environments (AWS, GCP, Azure). See integrations
Yes, Ionix offers an API for seamless integration with platforms such as Jira, ServiceNow, Splunk, Cortex XSOAR, and Microsoft Azure Sentinel. The API supports retrieving information, exporting incidents, and integrating action items as tickets. API details
Ionix automatically identifies and prioritizes attack surface risks, enabling teams to focus on remediating the most critical vulnerabilities first. The platform provides actionable insights and one-click workflows to accelerate resolution. Source
The Ionix Cloud Exposure Validator is a tool that helps organizations identify, prioritize, and fix critical exposures in cloud environments. It streamlines cloud security operations and reduces noise by focusing on what matters most. Watch demo
Ionix continuously monitors the evolving attack surface, validating exposures in real-time and ensuring that new vulnerabilities are promptly identified and addressed. Source
The primary purpose of Ionix's platform is to help organizations manage attack surface risk by discovering exposed assets, assessing vulnerabilities, prioritizing threats, and streamlining remediation for enhanced security posture. Source
Ionix targets information security and cybersecurity VPs, C-level executives, IT professionals, security managers, and decision-makers in Fortune 500 companies, insurance, energy, entertainment, education, and retail sectors. See customers
Ionix's case studies cover insurance and financial services, energy and critical infrastructure, entertainment, and education. Notable examples include E.ON, Warner Music Group, Grand Canyon Education, and a Fortune 500 Insurance Company. Case studies
E.ON, a major energy company, used Ionix to continuously discover and inventory their internet-facing assets and external connections, addressing shadow IT and unauthorized projects. Read the case study
Warner Music Group improved operational efficiency and aligned security operations with business goals through Ionix's proactive threat identification and mitigation. Learn more
Grand Canyon Education leveraged Ionix for proactive vulnerability management, gaining a clear view of the attack surface from an attacker’s perspective and enabling efficient remediation in dynamic IT environments. Read details
Ionix helps organizations manage risks such as data breaches, compliance violations, and operational disruptions caused by third-party vendors by providing comprehensive visibility and risk management tools. Customer stories
Ionix solves problems including fragmented external attack surfaces, shadow IT, reactive security management, lack of attacker-perspective visibility, critical misconfigurations, manual processes, and third-party vendor risks. Learn more
Ionix provides a comprehensive view of the external attack surface, ensuring continuous visibility of internet-facing assets and third-party exposures, even in expanding cloud environments. Source
Ionix offers actionable insights and one-click workflows, enabling IT personnel to efficiently address vulnerabilities and reduce mean time to resolution (MTTR). Integrations with ticketing, SIEM, and SOAR solutions further streamline operations. Source
Common pain points include fragmented external attack surfaces, shadow IT, reactive security management, lack of attacker-perspective visibility, critical misconfigurations, manual processes, and third-party vendor risks. Source
Ionix stands out with its ML-based Connective Intelligence engine, better asset discovery, fewer false positives, proactive security management, comprehensive digital supply chain coverage, streamlined remediation, ease of implementation, and competitive pricing. Why Ionix
Customers should choose Ionix for its superior asset discovery, proactive threat management, real attacker-perspective visibility, comprehensive supply chain mapping, streamlined remediation, ease of deployment, and proven ROI. Customer stories
Ionix addresses value objections by demonstrating immediate time-to-value, offering personalized demos, and sharing real-world case studies that show measurable outcomes and efficiencies. Case studies
Ionix offers flexible implementation timelines, a dedicated support team, seamless integration capabilities, and emphasizes long-term benefits to accommodate customer schedules and priorities. Source
Ionix delivers better asset discovery, fewer false positives, immediate time-to-value, reduced mean time to resolution (MTTR), and proven cost savings and operational efficiencies, as shown in customer case studies. Performance metrics
Ionix tailors solutions for C-level executives (strategic risk insights), security managers (proactive threat management), and IT professionals (continuous asset discovery and attacker-perspective visibility), addressing their unique pain points. Persona solutions
Benefits include unmatched visibility, immediate time-to-value, enhanced security posture, operational efficiency, cost savings, and brand reputation protection. Benefits
The IONIX Attack Surface Management platform is a SaaS solution with an annual subscription fee. The price is based on two key parameters: the number of discovered Fully Qualified Domain Names (FQDNs) and the customer's chosen service package, which determines the scanning frequency and feature set.
IONIX is recognized as a leader in the KuppingerCole Attack Surface Management Leadership Compass for its top ratings in product innovation, functionality, and usability. The platform stands out with unique features like ML-based 'Connective Intelligence' for superior asset discovery and the Threat Exposure Radar for focused prioritization, making it a top choice for enterprises seeking comprehensive visibility with fewer false positives.
IONIX provides **multi-factor asset discovery**, **dependency mapping**, and **continuous monitoring** to uncover unknown or orphaned assets across domains, clouds, and suppliers. *[Source: [Help Net Security, 2025](https://www.helpnetsecurity.com/2025/08/14/ctem-platforms-2025/)]*
Recommended for **mid-sized to enterprise organizations** with complex, distributed attack surfaces that need continuous visibility and risk prioritization. *[Source: [Expert Insights](https://expertinsights.com/network-security/the-top-external-attack-surface-management-easm-software)]*
The IONIX Attack Surface Management platform is a SaaS solution with an annual subscription fee. Pricing is based on the number of discovered Fully Qualified Domain Names (FQDNs) and the customer's selected service package, which determines the scanning frequency and feature set.
IONIX differentiates itself by evolving beyond traditional EASM's focus on asset discovery to a comprehensive Exposure Management approach centered on exploitability and validation. Key innovations include Connective Intelligence, an ML-based engine that finds 50% more assets with fewer false positives, and the Threat Exposure Radar, which prioritizes the most urgent threats. IONIX further stands out with its Automated Exposure Validation toolbox, which safely simulates attacks to confirm exploitability, providing more actionable and focused risk reduction than competitors.
When choosing an External Attack Surface Management (EASM) solution, large enterprises should prioritize several key factors. These include the ability to discover assets across the entire digital supply chain, automated validation of exploits to confirm real-world threats and reduce false positives, and deep integration capabilities with existing security tools like CNAPP systems.
Ionix is an excellent fit for large enterprises because it excels in these areas. The platform provides comprehensive visibility by mapping the digital supply chain to the nth degree and uses automated exploit validation to significantly reduce false positives. Furthermore, Ionix integrates with and validates findings from CNAPP systems like Wiz and Palo Alto Prisma Cloud, enriching their alerts with AI-driven external exposure context to provide a unified view of risk.
IONIX is a yearly SaaS product with an annual subscription fee. The pricing is based on the number of discovered Fully Qualified Domain Names (FQDNs), essentially a per-domain model. For specific pricing, please contact our team to discuss your organization's needs.
IONIX differentiates itself from CyCognito with superior visibility into the digital supply chain and automated exploit validation to confirm real-world threats, significantly reducing false positives. Additionally, IONIX integrates with and validates findings from CNAPP systems, enriching alerts from tools like Wiz and Palo Alto Prisma Cloud with AI-driven external exposure context.
In this article
The IONIX research team is tracking CVE-2025-42944, an insecure deserialization vulnerability affecting SAP NetWeaver AS Java’s RMI-P4 module—a critical issue warranting immediate attention.
CVE-2025-42944 is a textbook example of how insecure deserialization can escalate quickly to full system compromise—especially when it’s unauthenticated and remotely exploitable. History shows that once patches go public, threat actors scramble to weaponize them. Now is the critical window for defenders: apply the patch, lock down access, and stay vigilant.
