Heap-based buffer overflow in IrfanView before 4.27 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PSD image with RLE compression.

IrfanView before 4.27 does not properly handle an unspecified integer variable during processing of PSD images, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted image file that triggers a heap-based buffer overflow, related to a "sign-extension error."

IrfanView 3.98 (with plugins) allows user-assisted attackers to cause a denial of service (application crash) via a crafted ANI image file, possibly due to a buffer overflow.

IrfanView 3.98 (with plugins) allows remote attackers to cause a denial of service (application crash) via a crafted CUR image file.