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. From 1.0.9 to before 1.6.57, passing a pointer obtained from     png_get_PLTE, png_get_tRNS, or png_get_hIST back into the corresponding setter on the same     png_struct/png_info pair causes the setter to read from freed memory and copy its contents into the     replacement buffer. The setter frees the internal buffer before copying from the caller-supplied pointer,     which now dangles. The freed region may contain stale data (producing silently corrupted chunk metadata)     or data from subsequent heap allocations (leaking unrelated heap contents into the chunk struct). This     vulnerability is fixed in 1.6.57. (CVE-2026-34757)

Note that Nessus relies on the presence of the package as reported by the vendor.

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-34757

medium Nessus Plugin ID 305709

Version 1.6