VulnHub

Real-time Cybersecurity News

AVEVA Enterprise SCADA

All CISA Advisories
PhishingCVEVulnerability

Overview

A vulnerability has been identified in AVEVA Enterprise SCADA that could allow attackers to manipulate serialized data, potentially leading to code execution during deserialization. This issue affects multiple versions of the software, including Enterprise SCADA 2025 and earlier versions back to 2022. Users are advised to switch from 'Binary Formatter' to 'Json' serialization and to change the 'AcceptBinaryFormattedData' setting to 'false'. Additionally, AVEVA recommends auditing device permissions and ensuring that only trusted users have operator rights. While there are no reports of active exploitation of this vulnerability, organizations are urged to take defensive measures to protect their systems. For detailed remediation steps, users should refer to the relevant knowledge base articles provided by AVEVA.

Key Takeaways

  • Affected Systems: AVEVA Enterprise SCADA 2025, Enterprise SCADA 2024, Enterprise SCADA 2023, Enterprise SCADA 2022
  • Action Required: Change 'Mode' setting from 'Binary Formatter' to 'Json'; change 'AcceptBinaryFormattedData' setting from 'true' to 'false'; re-cache the XOS Event Handlers assembly; configure clients to only use JSON serialization; migrate HMI displays; audit devices and permissions; disallow BLT Test clients in production environments.
  • Timeline: Disclosed on 2026-08-13

Original Article Summary

View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to tamper with serialized data, potentially resulting in code execution during deserialization. The following versions of AVEVA Enterprise SCADA are affected: Enterprise SCADA 2025 (CVE-2025-7639) Enterprise SCADA >=2024|=2023|=2022|=2024|=2023|=2022| "Mode" setting from 'Binary Formatter' to 'Json'. Change "BinarySerializer" -> "AcceptBinaryFormattedData" setting from 'true' to 'false'. Re-cache the XOS Event Handlers assembly Mitigation Client Components: Configure clients/products that interface with Enterprise SCADA to only use JSON serialization. Mitigation HMI: Migrate HMI displays Mitigation For step-by-step instructions on where and how to apply these configuration settings, how to migrate HMI displays, compatible server-client versions list, and additional details please refer to KB117814 "AVEVA Midstream Product Bulletin - Removal of Binary Formatter" https://softwaresupportsp.aveva.com/en-US/knowledge/details/000117814?lang=en_US Mitigation AVEVA recommends the following general defensive measures: Audit devices, network topology, and perimeter defences to ensure all applicable security best practices from AVEVA's Enterprise SCADA Reference System Architecture are adhered to. Audit assigned permissions to ensure that only trusted users are given "DNA Authority - Operator" rights: https://docs.aveva.com/bundle/scada-ent-2025/page/651008.html Disallow BLT Test clients in production environmentsFor additional details on defensive measures, refer to Section 5 of KB117814 "AVEVA Midstream Product Bulletin - Removal of Binary Formatter https://docs.aveva.com/bundle/scada-ent-2025/page/651008.html Mitigation For more information on this vulnerability, including security updates, users should see the security bulletin AVEVA-2026-005. https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AVEVA-2026-005.pdf Relevant CWE: CWE-502 Deserialization of Untrusted Data Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.1 HIGH CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H 4.0 6.1 MEDIUM CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N Acknowledgments AVEVA reported this vulnerability to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks. Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability has a high attack complexity. Revision History Initial Release Date: 2026-08-13 Date Revision Summary 2026-08-13 1 Initial Republication of AVEVA security bulletin AVEVA-2026-005 Legal Notice and Terms of Use

Impact

AVEVA Enterprise SCADA 2025, Enterprise SCADA 2024, Enterprise SCADA 2023, Enterprise SCADA 2022

Exploitation Status

No active exploitation has been reported at this time. However, organizations should still apply patches promptly as proof-of-concept code may exist.

Timeline

Disclosed on 2026-08-13

Remediation

Change 'Mode' setting from 'Binary Formatter' to 'Json'; change 'AcceptBinaryFormattedData' setting from 'true' to 'false'; re-cache the XOS Event Handlers assembly; configure clients to only use JSON serialization; migrate HMI displays; audit devices and permissions; disallow BLT Test clients in production environments.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Phishing, CVE, Vulnerability.

Read Original Article

Related Coverage

CMMC Phase 2 suspended: What defense contractors need to know

SCM feed for Latest

The Department of Defense has paused the implementation of CMMC Phase 2, which was intended to enhance cybersecurity standards among defense contractors. Despite this suspension, companies in the defense sector are still required to comply with existing cybersecurity requirements to protect sensitive information. This decision affects a wide range of contractors who must continue to meet the standards set by previous phases of the Cybersecurity Maturity Model Certification (CMMC). The pause raises questions about future compliance timelines and the overall effectiveness of cybersecurity measures within the defense supply chain. Contractors should stay informed and maintain their cybersecurity protocols to safeguard their systems against potential threats.

Aug 24, 2026

Cybercriminals Turn GTA VI Leaks Into Malware Bait

Security Affairs

Cybercriminals are exploiting the excitement surrounding the upcoming game, GTA VI, by distributing a fake 113GB build that contains malware. This malicious software is cleverly concealed within massive empty files, hiding a small but dangerous payload. Many eager fans are falling victim to this scam, with some even encouraging each other to download the file to verify the authenticity of the leaks. This situation raises significant concerns about user safety, as individuals risk infecting their own computers in pursuit of gaming news. It's a stark reminder that in the world of gaming, especially during hype periods, caution is essential to avoid malware traps.

Aug 24, 2026

NIST Warns of Unique Security Risks in Multi-Cloud Environments

Infosecurity Magazine

The National Institute of Standards and Technology (NIST) has identified 23 new security challenges that arise specifically in multi-cloud environments. This guidance is aimed at encouraging the cybersecurity community to address these unique risks, which can complicate data management and security protocols across different cloud platforms. As more organizations adopt multi-cloud strategies for flexibility and cost-effectiveness, understanding these challenges becomes critical to safeguarding sensitive information. NIST's call to action is particularly relevant for businesses that rely on multiple cloud services, as they face increased complexity in ensuring their data remains secure. The agency's emphasis on collaboration within the cyber community underscores the need for innovative solutions to these emerging issues.

Aug 24, 2026

ReliaQuest confirms failed data-theft attack after ShinyHunters breach

BleepingComputer

ReliaQuest, a cybersecurity company, has confirmed that an employee was targeted in a social engineering attack by hackers impersonating a member of their security team. This incident follows a previous breach involving the hacker group ShinyHunters, known for stealing and leaking data from various organizations. Although ReliaQuest has stated that no data was successfully stolen in this attempt, the incident raises concerns about the effectiveness of internal security protocols and employee training regarding social engineering tactics. It serves as a reminder of the ongoing risks that companies face from sophisticated phishing schemes and the need for vigilant security practices. The implications of such attacks can be significant, leading to potential data breaches and loss of trust among clients and partners.

Aug 24, 2026

⚡ Weekly Recap: AI-Powered PLC Attacks, GitLab Attacks, Stripe Key Leaks and More

The Hacker News

This week saw a rise in attacks leveraging AI to exploit Programmable Logic Controllers (PLCs), which are crucial in industrial automation. Researchers noted that trusted tools have been manipulated, making it easier for attackers to exploit existing vulnerabilities in these systems. Additionally, there were reported breaches involving GitLab, where sensitive data was compromised, and Stripe faced key leaks that could jeopardize user accounts. These incidents emphasize the need for companies to prioritize security measures and update their systems regularly to fend off these evolving threats. The implications are significant, as industries rely heavily on these technologies, and any exploitation can lead to serious operational disruptions.

Aug 24, 2026

The OWASP LLM Top 10: What Application Security Teams Need to Know About LLM Vulnerabilities

SCM feed for Latest

The OWASP Foundation has introduced the 'LLM Top 10', a list focused on vulnerabilities associated with Large Language Models (LLMs) that application security teams should be aware of. This list identifies potential risks such as data leakage, prompt injection, and model inversion attacks that can affect the integrity and confidentiality of applications using LLMs. Companies leveraging these models for various applications, including chatbots and automated content generation, need to understand these vulnerabilities to protect their systems. The growing use of LLMs in commercial products means that addressing these risks is crucial for maintaining user trust and ensuring the security of sensitive data. Organizations are encouraged to implement security measures and best practices to mitigate these vulnerabilities.

Aug 24, 2026