incron 0.5.5 does not initialize supplementary groups when running a process from a user's incrontabs, which causes the process to be run with the incrond supplementary groups and allows local users to gain privileges via an incrontab table.
https://admin.fedoraproject.org/updates/incron-0.5.5-2.el5
http://koji.fedoraproject.org/koji/buildinfo?buildID=134880
Source: Mitre, NVD
Published: 2009-10-08
Updated: 2026-06-16
Base Score: 4.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00052