Linux Distros Unpatched Vulnerability : CVE-2026-33020

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain an integer overflow which leads to a heap buffer...

CVE-2026-33020

libsixel versions up to 1.8.7 are affected by an integer overflow in sixel_frame_convert_to_rgb888() that causes a heap buffer overflow when handling palettised images (PAL1, PAL2, PAL4). The allocation size and pointer arithmetic use int, leading to an undersized heap allocation and negative off...