peter bassill · operator
$ cve CVE-2019-18224 JSON

CVE-2019-18224

9.8
CRITICAL · CVSS 3.1 · EPSS 3.7% (pctl 89)

In your normal cycle

Critical by CVSS (9.8), but no sign of active exploitation.

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.

Scoring

CVSS9.8 (CRITICAL, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS3.71% — more likely to be exploited than 89% of all CVEs
WeaknessCWE-787
On CISA KEVno
Public exploitnone known
Published2019-10-21
Last modified2026-06-17

Affected (1)

VendorProduct
gnulibidn2

References

→ the Explorer  ·  watch your stack  ·  NVD