VULNERABILITY INTELLIGENCE
CVE-2002-0820
CVSS score7.2 HIGH
EPSS probability0.41%
CISA KEVNot currently listed
Published2002-08-12
Last modified2026-06-16
CVSS vectorAV:L/AC:L/Au:N/C:C/I:C/A:C
Description
FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.