CVE-2025-45663: Netsurf-Browser Netsurf

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue in NetSurf v3.11 causes the application to read uninitialized heap memory when creating a dom_event structure.

Affected products

• Netsurf-Browser Netsurf: version 3.11 only

Published 2025-11-03. Last modified 2026-06-17.