CVE-2017-7832

Name: CVE-2017-7832
Creator: NVD / NIST
Published: 2018-06-11T21:29:11.483+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.51%

Last modified Jun 17, 2026

CVE-2017-7832 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.51% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

1.51%

71.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	<= 56.0.2

References

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

Timeline

Published: Jun 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7832?

How severe is CVE-2017-7832?

Severity scoring for CVE-2017-7832 is pending analysis. The EPSS model estimates a 1.51% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7832?

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-2017-7832?

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

Scan your code now

Source: NVD / NIST