CVE-2025-47771: Powsybl Powsybl-Core

High severity, CVSS 8.1. EPSS: 0.5% chance of exploitation in the next 30 days.

PowSyBl (Power System Blocks) is a framework to build power system oriented software. In versions 6.3.0 to 6.7.1, there is a deserialization issue in the read method of the SparseMatrix class that can lead to a wide range of privilege escalations depending on the circumstances. This method takes in an InputStream and returns a SparseMatrix object. This issue has been patched in com.powsybl:powsybl-math: 6.7.2. A workaround for this issue involves not using SparseMatrix deserialization (SparseMatrix.read(...) methods).

Affected products

• Powsybl Powsybl-Core: from 6.3.0, before 6.7.2 (fixed in 6.7.2)

Published 2025-06-20. Last modified 2026-06-17.