CVE-2017-14062: Debian Linux

Critical severity, CVSS 9.8. EPSS: 3.9% chance of exploitation in the next 30 days.

Integer overflow in the decode_digit function in puny_decode.c in Libidn2 before 2.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only; version 10.0 only
• GNU LIBIDN2: before 2.0.4 (fixed in 2.0.4)

Published 2017-08-31. Last modified 2026-06-17.