CVE-2025-4124: Deltaww Ispsoft

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Delta Electronics ISPSoft version 3.20 is vulnerable to an Out-Of-Bounds Write vulnerability that could allow an attacker to execute arbitrary code when parsing ISP file.

Affected products

• Deltaww Ispsoft: before 3.21 (fixed in 3.21)

Published 2025-04-30. Last modified 2026-06-17.