CVE-2018-11498: Lizard Project Lizard

High severity, CVSS 7.8. EPSS: 2% chance of exploitation in the next 30 days.

In Lizard v1.0 and LZ5 v2.0 (the prior release, before the product was renamed), there is an unchecked buffer size during a memcpy in the Lizard_decompress_LIZv1 function (lib/lizard_decompress_liz.h). Remote attackers can leverage this vulnerability to cause a denial of service via a crafted input file, as well as achieve remote code execution.

Affected products

Published 2018-05-26. Last modified 2026-06-17.