CVE Database›Document archive›CVE-2026-40469

CVE-2026-40469

gawk: gawk: Denial of Service due to integer overflow

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Severity

Moderate

Red Hat Product Security

2.8

CVSS 3.1

Review impact separately from score.

Published · July 13, 2026

Updated · October 14, 2026

Description

A flaw was found in gawk. An integer overflow vulnerability exists in the do_sub() routine, which could allow an attacker to overwrite internal program data. This can lead to a denial of service (DoS) by causing the gawk program to crash. This issue affects 32-bit builds of gawk.

Statement

This vulnerability is only present in 32-bit builds of gawk, which are not provided for Red Hat CoreOS, Red Hat Enterprise Linux versions 7 and later.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

CVSS / CWE

CVSS 3.1 · 2.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

CWE-190 · Integer Overflow or Wraparound