What’s Vulnerable › Vulnerabilities

CVE-2016-8625

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-08-01 · updated 2026-06-17
• Weakness: CWE-20

Description

curl before version 7.51.0 uses outdated IDNA 2003 standard to handle International Domain Names and this may lead users to potentially and unknowingly issue network transfer requests to the wrong host.

Affected products

• curl: before 7.51.0 — fixed in 7.51.0

How to fix

Upgrade to a fixed version: curl 7.51.0. Check the vendor advisory for mitigations.

References

• http://www.securityfocus.com/bid/94107
• http://www.securitytracker.com/id/1037192
• https://access.redhat.com/errata/RHSA-2018:2486
• https://access.redhat.com/errata/RHSA-2018:3558
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8625
• https://curl.haxx.se/CVE-2016-8625.patch
• https://curl.haxx.se/docs/adv_20161102K.html
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
• https://security.gentoo.org/glsa/201701-47
• https://www.tenable.com/security/tns-2016-21
• http://www.securityfocus.com/bid/94107

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