CVE-2026-40467: Fossies Gawk

High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Use After Free vulnerability has been found in "io.c" program file of gawk (do_getline_redir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.

Affected products

• Fossies Gawk: up to and including 5.4.0

Published 2026-07-13. Last modified 2026-07-14.