CVE-2020-23546: Irfanview

High severity, CVSS 7.8. EPSS: 1% chance of exploitation in the next 30 days.

IrfanView 4.54 allows attackers to cause a denial of service or possibly other unspecified impacts via a crafted XBM file, related to a "Data from Faulting Address is used as one or more arguments in a subsequent Function Call starting at FORMATS!ReadMosaic+0x0000000000000981.

Affected products

• Irfanview Irfanview: version 4.54 only

Published 2021-10-28. Last modified 2026-07-09.