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|<=2024_SP1_P01 (CVE-2025-7639)
- Enterprise SCADA >=2023|<=2023_SP1 (CVE-2025-7639)
- Enterprise SCADA >=2022|<=2022_SP2_P2 (CVE-2025-7639)
- Enterprise SCADA <=2021_SP2_P5 (CVE-2025-7639)
- Enterprise SCADA HMI 2024|2024|R2 (CVE-2025-7639)
- Enterprise SCADA HMI <=2023_P1 (CVE-2025-7639)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 7.1 | AVEVA | AVEVA Enterprise SCADA | Deserialization of Untrusted Data |
Background
- Critical Infrastructure Sectors: Critical Manufacturing
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: United Kingdom
Vulnerabilities
CVE-2025-7639
The vulnerability, if exploited, could allow an authenticated miscreant with "DNA Authority - Operator" privilege to tamper with serialized data, potentially resulting in code execution during deserialization under the privilege of Enterprise SCADA security group "DNA Apps".
Affected Products
AVEVA Enterprise SCADA
Vendor:
AVEVA
Product Version:
AVEVA Enterprise SCADA: 2025, AVEVA Enterprise SCADA: >=2024|<=2024_SP1_P01, AVEVA Enterprise SCADA: >=2023|<=2023_SP1, AVEVA Enterprise SCADA: >=2022|<=2022_SP2_P2, AVEVA Enterprise SCADA: <=2021_SP2_P5, AVEVA Enterprise SCADA HMI: 2024|2024_R2, AVEVA Enterprise SCADA HMI: <=2023_P1
Product Status:
known_affected
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 |
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