CVE-2023-43907: Optipng Project Optipng

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

OptiPNG v0.7.7 was discovered to contain a global buffer overflow via the 'buffer' variable at gifread.c.

Affected products

• Optipng Project Optipng: version 0.7.7 only

Published 2023-10-01. Last modified 2026-06-17.