CVE-2017-7832

The combined, single character, version of the letter 'i' with any of the potential accents in unicode, such as acute or grave, can be spoofed in the addressbar by the dotless version of 'i' followed by the same accent as a second character with most font sets. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.

• CWE-20

• http://www.securityfocus.com/bid/101832Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1039803Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1408782Issue Tracking, Permissions Required
• https://www.mozilla.org/security/advisories/mfsa2017-24/Vendor Advisory
• http://www.securityfocus.com/bid/101832Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1039803Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1408782Issue Tracking, Permissions Required
• https://www.mozilla.org/security/advisories/mfsa2017-24/Vendor Advisory

Published

Jun 11, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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