CVE-2020-23561: Irfanview

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

IrfanView 4.54 allows a user-mode write access violation starting at FORMATS!ShowPlugInSaveOptions_W+0x0000000000005722.

Affected products

• Irfanview Irfanview: version 4.54 only

Published 2022-07-18. Last modified 2026-06-17.