CVE-2015-1515: Softsphere Defensewall Personal Firewall

High severity, CVSS 7.2. EPSS: 1% chance of exploitation in the next 30 days.

The dwall.sys driver in SoftSphere DefenseWall Personal Firewall 3.24 allows local users to write data to arbitrary memory locations, and consequently gain privileges, via a crafted 0x00222000, 0x00222004, 0x00222008, 0x0022200c, or 0x00222010 IOCTL call.

Affected products

• Softsphere Defensewall Personal Firewall: version 3.24 only

Published 2015-02-19. Last modified 2026-06-17.