libpng: LIBPNG has a heap buffer overflow in png_set_quantize

A heap based buffer overflow flaw has been discovered in LibPNG. Prior to version 1.6.55, an out-of-bounds read vulnerability exists in the pngsetquantize API function. When the function is called with no histogram and the number of colors in the palette is more than twice the maximum supported b...

AZL-77463 CVE-2026-25646 affecting package libpng15 1.5.30-15

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the pngsetquantize API function. When the function is called with no histogram and the number of...

AZL-77471 CVE-2026-25646 affecting package libpng12 1.2.57-16

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the pngsetquantize API function. When the function is called with no histogram and the number of...

AZL-77457 CVE-2026-25646 affecting package fltk 1.3.5-4

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the pngsetquantize API function. When the function is called with no histogram and the number of...

edk2: Stack buffer overflow with corrupted BMP

A stack-based buffer overflow was discovered in edk2 when the HII database contains a Bitmap that claims to be 4-bit or 8-bit per pixel, but the palette contains more than 162^4 or 2562^8 colors...

libpng: Buffer overflow vulnerabilities in png_get_PLTE/png_set_PLTE functions

It was discovered that the pnggetPLTE and pngsetPLTE functions of libpng did not correctly calculate the maximum palette sizes for bit depths of less than 8. In case an application tried to use these functions in combination with properly calculated palette sizes, this could lead to a buffer...