CVE-2026-40468

CriticalCVSS 9.1/10Last modified Oct 24, 2026

Description

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.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-190

Affected software

No affected versions have been published.

Timeline

Published: Jul 13, 2026
Last modified: Oct 24, 2026
NVD status: Analyzed

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