CVE-2023-45662: Nothings Stb Image.h

High severity, CVSS 8.1. EPSS: 0.7% chance of exploitation in the next 30 days.

stb_image is a single file MIT licensed library for processing images. When `stbi_set_flip_vertically_on_load` is set to `TRUE` and `req_comp` is set to a number that doesn’t match the real number of components per pixel, the library attempts to flip the image vertically. A crafted image file can trigger `memcpy` out-of-bounds read because `bytes_per_pixel` used to calculate `bytes_per_row` doesn’t match the real image array dimensions.

Affected products

• Nothings Stb Image.h: version 2.28 only

Published 2023-10-21. Last modified 2026-06-17.