XnView 2.45 allows remote attackers to cause a denial of service (Read Access Violation at the Instruction Pointer and application crash) or possibly have unspecified other impact via a crafted ICO file.

Xjp2.dll in XnView before 2.13 allows remote attackers to execute arbitrary code via (1) the Csiz parameter in a SIZ marker, which triggers an incorrect memory allocation, or (2) the lqcd field in a QCD marker in a crafted JPEG2000 file, which leads to a heap-based buffer overflow.

xnview.exe in XnView before 2.13 does not properly handle RLE strip lengths during processing of RGB files, which allows remote attackers to execute arbitrary code via the RLE strip size field in a RGB file, which leads to an unexpected sign extension error and a heap-based buffer overflow.

Heap-based buffer overflow in xnview.exe in XnView before 2.13 allows remote attackers to execute arbitrary code via the biBitCount field in a BMP file.

XnView 2.03 has an integer overflow vulnerability

XnView 2.03 has a stack-based buffer overflow vulnerability

Heap-based buffer overflow in xnview.exe in XnView before 2.03 allows remote attackers to execute arbitrary code via a crafted RLE compressed layer in an XCF file.

Stack-based buffer overflow in xnview.exe in XnView before 2.03 allows remote attackers to execute arbitrary code via a crafted image layer in an XCF file.