CVE-2016-5827: Libical Project Libical

High severity, CVSS 7.5. EPSS: 3.1% chance of exploitation in the next 30 days.

The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.

Affected products

• Libical Project Libical: version 0.47 only; version 1.0.0 only

Published 2017-01-27. Last modified 2026-06-17.