CVE-2018-20450: Libxls Project Libxls

Medium severity, CVSS 6.5. EPSS: 1.1% chance of exploitation in the next 30 days.

The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.

Affected products

Published 2018-12-25. Last modified 2026-06-17.