CVE-2020-23566: Irfanview

Medium severity, CVSS 5.5. EPSS: 0.8% chance of exploitation in the next 30 days.

Irfanview v4.53 was discovered to contain an infinity loop via JPEG2000!ShowPlugInSaveOptions_W+0x1ecd8.

Affected products

• Irfanview Irfanview: version 4.53 only

Published 2021-11-05. Last modified 2026-06-17.