CVE-2020-27819

An issue was discovered in libxls before and including 1.6.1 when reading Microsoft Excel files. A NULL pointer dereference vulnerability exists when parsing XLS cells in libxls/xls2csv.c:199. It could allow a remote attacker to cause a denial of service via crafted XLS file.

• CWE-476

• https://bugzilla.redhat.com/show_bug.cgi?id=1903296Issue Tracking, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1903296Issue Tracking, Third Party Advisory

Published

Feb 23, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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