CVE-2026-18743

Public on 2026-09-01
Modified on 2026-09-03
Description
A flaw was found in popt. This vulnerability allows an attacker to provide specially crafted configuration content to a host, which, when loaded, can lead to a small memory corruption issue. This occurs because of an error in how the `poptConfigFileToString` function reallocates memory for buffers. Successful exploitation could result in heap metadata corruption, potentially causing the affected process to become unavailable (denial of service).
Severity
Low severity
Low
See what this means
CVSS v3 Base Score
2.5
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core popt Pending Fix
Amazon Linux 2023 popt Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L