CVE-2003-0390: James Theiler Opt

Medium severity, CVSS 4.6. EPSS: 1% chance of exploitation in the next 30 days.

Multiple buffer overflows in Options Parsing Tool (OPT) shared library 3.18 and earlier, when used in setuid programs, may allow local users to execute arbitrary code via long command line options that are fed into macros such as opt_warn_2, as used in functions such as opt_atoi.

Affected products

• James Theiler Opt: up to and including 3.18

Published 2003-07-02. Last modified 2026-06-16.