CVE-2026-40468
Critical · 9.1CVSS
9.1
EPSS
0.2%
Published
Jul 13, 2026
CISA due date
—
The record
Integer overflow vulnerability has been found in "builtin.c" program file of gawk. This issue may lead to memory exhaustion on the hosting operating system and could be used to overwrite gawk heap metadata and objects with attacker-controlled bytes. It affects gawk in versions 5.4.0 and below.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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