CVE-2026-40469
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 (do_sub() routine). This issue could be used to overwrite gawk heap metadata and objects causing the program to crash. It affects 32-bit builds of gawk in versions 5.4.0 and below.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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