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CVE-2017-14062

25
FAUCET Score

CVE-2017-14062 describes an integer overflow in the decode_digit function of Libidn2 before version 2.0.4, impacting Debian and GNU Libidn2 products. This critical vulnerability (CVSS 9.8) is remotely exploitable with low attack complexity, potentially leading to a denial of service or other significant impacts (confidentiality, integrity, availability). There is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0.4CPE matchmatch criteria
cpe:2.3:a:gnu:libidn2:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.96%
Probability of exploitation in next 30 days
EPSS Percentile
89.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0396 is in the 82nd percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libidn
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libidn
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libidn

Vendor Advisories (1)

redhatCVE-2017-14062Low

libidn2: Integer overflow in puny_decode.c/decode_digit

Aug 30, 2017

References

gitlab.com / libidn/libidn2/blob/master/NEWS
Release NotesThird Party Advisory
gitlab.com / libidn/libidn2/commit/3284eb342cd0ed1a18786e3fcdf0cdd7e76676bd
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/07/msg00040.html
Mailing ListThird Party Advisory
debian.org / security/2017/dsa-3988
Third Party Advisory