VULNERABILITY INTELLIGENCE
CVE-2026-18743
CVSS score2.5 LOW
EPSS probability0.14%
CISA KEVNot currently listed
Published2026-09-01
Last modified2026-09-08
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
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).
Weakness classification
- secalert@redhat.com: CWE-131