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TI-2025-30237 Aliases CVE-2025-47771GHSA-f5cx-h789-j959

PowSyBl Core allows deserialization of untrusted SparseMatrix data

Priority MEDIUM 42CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-502.

Summary

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).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00515 44th percentileScored 2026-11-07
Fix Fixed powsybl-core (powsybl): 6.7.2com.powsybl:powsybl-math (Maven): 6.7.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
powsyblpowsybl-core6.3.0 to before 6.7.26.7.2Patch availableCNA
—com.powsybl:powsybl-math (Maven)6.3.0 to before 6.7.26.7.2Patch availableGHSA-f5cx-h789-j959
  • powsybl-core Vendorpowsybl Affected 6.3.0 to before 6.7.2 Fixed in 6.7.2 Patch available CNA
  • com.powsybl:powsybl-math (Maven) Vendor— Affected 6.3.0 to before 6.7.2 Fixed in 6.7.2 Patch available GHSA-f5cx-h789-j959

Remediation

  • Fix · CNA powsybl-core (powsybl) Fixed in 6.7.2
  • Fix · GHSA-f5cx-h789-j959 com.powsybl:powsybl-math (Maven) Fixed in 6.7.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-47771
  2. 2026-10-03 Alias added: GHSA-f5cx-h789-j959

References

Advisory 1

Other 4

  • TI-2025-30429 PowSyBl Core contains Polynomial REDoS’es CVSS 4.0MEDIUM 6.3
  • TI-2026-40195 PowSyBl: Command Injection in LocalCommandExecutor-s CVSS 4.0HIGH 7.1
  • TI-2025-30430 PowSyBl Core Contains a Polynomial ReDoS in RegexCriterion CVSS 4.0LOW 2.7
  • TI-2025-29823 PowSyBl Core XML Reader allows XXE and SSRF CVSS 4.0LOW 2.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences