CVE-2021-21871: Poweriso

High severity, CVSS 7.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A memory corruption vulnerability exists in the DMG File Format Handler functionality of PowerISO 7.9. A specially crafted DMG file can lead to an out-of-bounds write. An attacker can provide a malicious file to trigger this vulnerability. The vendor fixed it in a bug-release of the current version.

Affected products

• Poweriso Poweriso: version 7.9 only

Published 2021-06-29. Last modified 2026-06-17.