THREATPORT/VULNERABILITY/CVE-2017-14062
CRITICAL SEVERITY

CVE-2017-14062

Libidn2 vulnerability

CVSS
9.8
EPSS
4.0%
EPSS pct
89th
Exploited
No known
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 vendor
Gnu
Affected product
Libidn2
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-190 — Integer Overflow or Wraparound
Published
2017-08-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2017-14062

  • Confirm whether Gnu Libidn2 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-14062.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-14062

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-14062 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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