Critical severity9.1NVD Advisory· Published Jul 13, 2026· Updated Jul 14, 2026
CVE-2026-40469
CVE-2026-40469
Description
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 products
2Patches
Vulnerability mechanics
References
2- cgit.git.savannah.gnu.org/cgit/gawk.git/commit/nvdPatch
- cert.pl/en/posts/2026/07/CVE-2026-40467nvdThird Party Advisory
News mentions
1- Patch Tuesday - July 2026Rapid7 Blog · Jul 14, 2026