CVE-2026-18743
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).
Scoring
- Severity
- LOW
- CVSS base score
- 2.5
- CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
- EPSS probability
- 0.12%
- CWE
- CWE-131
- Published
- 2026-09-01
- Last modified
- 2026-09-09
Affected products
- rpm-software-management popt
- Red Hat Red Hat Hardened Images
Weakness type
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