CVE-2020-7458: Freebsd

Critical severity, CVSS 9.8. EPSS: 1.9% chance of exploitation in the next 30 days.

In FreeBSD 12.1-STABLE before r362281, 11.4-STABLE before r362281, and 11.4-RELEASE before p1, long values in the user-controlled PATH environment variable cause posix_spawnp to write beyond the end of the heap allocated stack possibly leading to arbitrary code execution.

Affected products

• Freebsd Freebsd: version 11.4 only; version 12.1 only

Published 2020-07-09. Last modified 2026-06-17.