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CVE PROGRAM SOURCE RECORD5.1 Medium

CVE-2026-40469

Heap buffer overflow in gawk

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

GNU gawk

Default version status: unaffected

  • 0 to ≤ 5.4.0affected

References