CVE-2020-28248: Png-Img Project Png-Img

High severity, CVSS 8.8. EPSS: 2.2% chance of exploitation in the next 30 days.

An integer overflow in the PngImg::InitStorage_() function of png-img before 3.1.0 leads to an under-allocation of heap memory and subsequently an exploitable heap-based buffer overflow when loading a crafted PNG file.

Affected products

• Png-Img Project Png-Img: before 3.1.0 (fixed in 3.1.0)

Published 2021-02-20. Last modified 2026-06-17.