The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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     png_set_quantize() 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 by the user's display, certain palettes will cause     the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer.
    The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is     fixed in 1.6.55. (CVE-2026-25646)

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Linux Distros Unpatched Vulnerability : CVE-2026-25646

high Nessus Plugin ID 298457

Version 1.13