CVE-2016-9933: Libgd

High severity, CVSS 7.5. EPSS: 6.9% chance of exploitation in the next 30 days.

Stack consumption vulnerability in the gdImageFillToBorder function in gd.c in the GD Graphics Library (aka libgd) before 2.2.2, as used in PHP before 5.6.28 and 7.x before 7.0.13, allows remote attackers to cause a denial of service (segmentation violation) via a crafted imagefilltoborder call that triggers use of a negative color value.

Affected products

• Libgd Libgd: version 2.2.1 only

Published 2017-01-04. Last modified 2026-06-17.