CVE-2017-9921: Irfanview

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

IrfanView version 4.44 (32bit) with TOOLS Plugin 4.50 might allow attackers to cause a denial of service or execute arbitrary code via a crafted file, related to "Data from Faulting Address controls Branch Selection starting at ntdll_77df0000!LdrpResGetMappingSize+0x00000000000003cc."

Affected products

• Irfanview Irfanview: version 4.44 only
• Irfanview Tools: version 4.50 only

Published 2017-07-05. Last modified 2026-06-17.