CVE-2025-44019 is a high-severity vulnerability affecting AVEVA PI Data Archive products. The root cause is an uncaught exception (classified under CWE-248: Uncaught Exception) that can be triggered by an authenticated user. Exploitation of this flaw allows the attacker to forcibly shut down critical subsystems within the PI Data Archive environment. This shutdown leads to a denial of service (DoS) condition, disrupting the availability of the data archive services. Furthermore, the timing of the induced crash is critical; if it occurs during snapshot creation or while data is being written to cache, there is a risk of data loss, impacting data integrity and availability. The vulnerability requires low attack complexity (AC:L) and privileges (PR:L), meaning an attacker must be authenticated but no special privileges beyond that are necessary. No user interaction is required to exploit the vulnerability. The scope is unchanged, affecting only the vulnerable component. The CVSS v3.1 base score is 7.1, reflecting high severity primarily due to the impact on availability and integrity, while confidentiality is not affected. No known exploits are currently in the wild, and no patches have been published yet. The vulnerability was reserved in April 2025 and published in June 2025, indicating recent discovery and disclosure. AVEVA PI Data Archive is widely used in industrial environments for real-time data management, especially in sectors such as manufacturing, energy, utilities, and critical infrastructure, making this vulnerability particularly relevant to operational technology (OT) environments.

For European organizations, the impact of CVE-2025-44019 can be significant, especially those relying on AVEVA PI Data Archive for industrial process data management. The denial of service caused by subsystem shutdowns can interrupt critical industrial operations, potentially halting production lines, disrupting energy distribution, or affecting water and utility services. The risk of data loss during snapshot or cache writes could impair operational decision-making, compliance reporting, and historical data analysis. This can lead to financial losses, safety risks, and regulatory non-compliance. Given the reliance of many European industries on real-time data for automation and monitoring, availability disruptions can cascade into broader operational outages. The requirement for authenticated access limits exploitation to insiders or compromised accounts, but insider threats or lateral movement by attackers within networks remain a concern. The lack of confidentiality impact reduces risk of data leakage but does not mitigate operational risks. The absence of known exploits suggests a window for proactive mitigation before active attacks emerge.

1. Implement strict access controls and monitoring on AVEVA PI Data Archive systems to limit authenticated user access only to trusted personnel and services. 2. Employ network segmentation and isolation for OT environments hosting PI Data Archive to reduce exposure to compromised accounts or external attackers. 3. Monitor system logs and alerts for unusual shutdowns or subsystem failures indicative of exploitation attempts. 4. Develop and test incident response plans specifically for PI Data Archive service disruptions to minimize downtime and data loss. 5. Coordinate with AVEVA for timely patch releases and apply updates as soon as they become available. 6. Consider deploying application-layer protections such as input validation or exception handling wrappers if feasible to reduce uncaught exception risks. 7. Conduct regular backups of critical snapshot and cache data to enable recovery in case of data loss. 8. Train operational staff on recognizing and reporting suspicious activity related to PI Data Archive access. 9. Use multi-factor authentication (MFA) to strengthen authentication mechanisms and reduce risk of credential compromise. 10. Perform vulnerability scanning and penetration testing focused on PI Data Archive to identify and remediate related security gaps.