CVE-2026-40467

FAUCET Score

Use After Free vulnerability has been found in "io.c" program file of gawk (do_getline_redir() routine). This issue may lead to a crash. 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

5.1MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/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

NONE

Privileges Required

NONE

User Interaction

NONE

VS Confidentiality

NONE

VS Integrity

NONE

VS Availability

LOW

SS Confidentiality

NONE

SS Integrity

NONE

SS Availability

NONE

Exploit Maturity

NOT_DEFINED

CvssVersion

4.0

Exploit Intelligence

EPSS Score

0.21%

Probability of exploitation in next 30 days

EPSS Percentile

11.8%

Percentile rank of EPSS score among Peer Group

As of 2026-07-26

Model: v2026.06.15

This CVE's current EPSS score of 0.0021 is in the 1st percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.