CVE-2017-14062

Name: CVE-2017-14062
Creator: NVD / NIST
Published: 2017-08-31T16:29:00.27+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.96%

Last modified Jun 17, 2026

CVE-2017-14062 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 3.96% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.96%

89.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Gnu	Libidn2	< 2.0.4
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0

References

http://www.debian.org/security/2017/dsa-3988Third Party Advisory
https://gitlab.com/libidn/libidn2/blob/master/NEWSRelease Notes, Third Party Advisory
https://gitlab.com/libidn/libidn2/commit/3284eb342cd0ed1a18786e3fcdf0cdd7e76676bdPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00040.htmlMailing List, Third Party Advisory
http://www.debian.org/security/2017/dsa-3988Third Party Advisory
https://gitlab.com/libidn/libidn2/blob/master/NEWSRelease Notes, Third Party Advisory
https://gitlab.com/libidn/libidn2/commit/3284eb342cd0ed1a18786e3fcdf0cdd7e76676bdPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00040.htmlMailing List, Third Party Advisory

Timeline

Published: Aug 31, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-14062?

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.

How severe is CVE-2017-14062?

CVE-2017-14062 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.96% probability of exploitation in the next 30 days.

How do I fix CVE-2017-14062?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-14062?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST