CVE-2019-19907: Kopano Groupware Core

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

HrAddFBBlock in libfreebusy/freebusyutil.cpp in Kopano Groupware Core before 8.7.7 allows out-of-bounds access, as demonstrated by mishandling of an array copy during parsing of ICal data.

Affected products

• Kopano Groupware Core: before 8.7.7 (fixed in 8.7.7)

Published 2019-12-19. Last modified 2026-06-17.