CVE-2025-7639AVEVA Enterprise SCADA Deserialization of Untrusted Data

Description

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".

Timeline

Scores

EPSS (exploitation in 30 days)

0.57% · top 52% of all CVEs (13 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.

Affected products

• AVEVA · AVEVA Enterprise SCADA

  • affected 2025
  • affected 2024 – ≤ 2024 SP1 P01
  • affected 2023 – ≤ 2023 SP1
  • affected 2022 – ≤ 2022 SP2 P2
  • affected ≤ 2021 SP2 P5
  • unaffected 2025 P1
  • unaffected 2024 SP1 P2
  • unaffected 2023 SP1 P1
  • unaffected 2022 SP2 P3
  • unaffected 2021 SP2 P6

• AVEVA · AVEVA Enterprise SCADA HMI

  • affected 2024
  • affected ≤ 2023_P1
  • affected 2024 R2
  • unaffected 2024 R2 HF7
  • unaffected 2024 P1
  • unaffected 2023 P2 HF1

• AVEVA · AVEVA Pipeline Operations for Gas/Liquids

  • unaffected 2025 P1
  • unaffected 2024 SP1 P2
  • unaffected 2023 SP1 P1
  • unaffected 2022 SP2 P3
  • unaffected 2021 SP2 P6

• AVEVA · AVEVA Pipeline Integrity Monitor (delivered on Pipeline Simulation media)

  • unaffected 2025 SP1 P2

• AVEVA · AVEVA Pipeline Training Simulator (delivered on Pipeline Simulation media)

  • unaffected 2025 SP1 P2

• AVEVA · Measurement Advisor

  • unaffected 2025 P1
  • unaffected 2021 SP1 HF16

What to do

Solution: Security Updates Contact your AVEVA Technical Support representative, Customer Success Manager, Account Manager, or Solution Integrator to obtain the security update best applicable to the product version currently deployed in your environment: Servers: • AVEVA Enterprise SCADA v2025 P1 or higher • AVEVA Enterprise SCADA v2024 SP1 P2 • AVEVA Enterprise SCADA v2023 SP1 P1 • AVEVA Enterprise SCADA v2022 SP2 P3 • AVEVA Enterprise SCADA v2021 SP2 P6 • AVEVA Pipeline Operations for Gas/Liquids v2025 P1 or higher • AVEVA Pipeline Operations for Gas/Liquids v2024 SP1 P2 • AVEVA Pipeline Operations for Gas/Liquids v2023 SP1 P1 • AVEVA Pipeline Operations for Gas/Liquids v2022 SP2 P3 • AVEVA Pipeline Operations for Gas/Liquids v2021 SP2 P6 Clients: • AVEVA Enterprise SCADA HMI v2024 R2 HF7 or higher • AVEVA Enterprise SCADA HMI v2024 P1 • AVEVA Enterprise SCADA HMI v2023 P2 HF1 • AVEVA Pipeline Integrity Monitor (delivered on Pipeline Simulation media) v2025 SP1 P2 or higher • AVEVA Pipeline Training Simulator (delivered on Pipeline Simulation media) v2025 SP1 P2 or higher • Measurement Advisor 2025 P1 or higher • Measurement Advisor 2021 SP1 HF16

Solution: Apply Secure Serialization Settings To fully mitigate the risk of exploit, the following configuration changes must be implemented after all server and client nodes have been upgraded to compatible versions that support the fix: Server Components: • Change “BinarySerializer” -> “Mode” setting from ‘Binary Formatter’ to ‘Json’. • Change “BinarySerializer” -> “AcceptBinaryFormattedData” setting from ‘true’ to ‘false’. • Re-cache the XOS Event Handlers assembly Client Components: • Configure clients/products that interface with Enterprise SCADA to only use JSON serialization. HMI: • Migrate HMI displays 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 .

Solution: AVEVA recommends that customers using affected product versions should perform the following to mitigate the risk of exploit: * Evaluate the impact of these vulnerabilities based on your operational environment, architecture, and product implementation. * Plan an upgrade of Servers and Clients to one of the available fixed versions listed in section “Security Updates”. * Configure Servers and Clients as described in section “Apply Secure Serialization Settings”.

Solution: 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

Workaround: Defensive Measures and General Considerations The following general defensive measures are recommended: - 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 https://docs.aveva.com/bundle/scada-ent-2025/page/651008.html - Disallow BLT Test clients in production environments. For additional details on defensive measures, please refer to Section 5 of KB117814 “AVEVA Midstream Product Bulletin – Removal of Binary Formatter” https://softwaresupportsp.aveva.com/en-US/knowledge/details/000117814 .

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2025-210730 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2025-7639](https://cveledger.app/badge/CVE-2025-7639.svg)](https://cveledger.app/cve/CVE-2025-7639)

Record last updated 17 Aug 2026, 20:01 UTC.