CVE-2021-40812: Libgd

Medium severity, CVSS 6.5. EPSS: 1.7% chance of exploitation in the next 30 days.

The GD Graphics Library (aka LibGD) through 2.3.2 has an out-of-bounds read because of the lack of certain gdGetBuf and gdPutBuf return value checks.

Affected products

• Libgd Libgd: up to and including 2.3.2

Published 2021-09-08. Last modified 2026-06-17.