CVE-2026-40468

FAUCET Score

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.

First published: Jul 13, 2026Last modified: Jul 13, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
		<= 5.4.0CPE matchmatch criteria	cpe:2.3:a:fossies:gawk::::::::

CVSS Data

CVSS version used by this source: 4.0

2.1LOW

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

LOCAL

Attack Complexity

LOW

Attack Requirements

PRESENT

Privileges Required

NONE

User Interaction

NONE

VS Confidentiality

NONE

VS Integrity

LOW

VS Availability

LOW

SS Confidentiality

NONE

SS Integrity

NONE

SS Availability

LOW

Exploit Maturity

NOT_DEFINED

CvssVersion

4.0

Exploit Intelligence

EPSS Score

0.20%

Probability of exploitation in next 30 days

EPSS Percentile

10.2%

Percentile rank of EPSS score among Peer Group

As of 2026-07-24

Model: v2026.06.15

This CVE's current EPSS score of 0.0020 is in the 0th percentile among its peer group of 36,821 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.