CVE-2019-18224

CriticalCVSS 9.8/10Last modified Oct 14, 2026

Description

idn2_to_ascii_4i in lib/lookup.c in GNU libidn2 before 2.1.1 has a heap-based buffer overflow via a long domain string.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Oct 21, 2019
Last modified
Oct 14, 2026
NVD status
Modified

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