CVE-2017-7825

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

Several fonts on OS X display some Tibetan and Arabic characters as whitespace. When used in the addressbar as part of an IDN this can be used for domain name spoofing attacks. Note: This attack only affects OS X operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

Metrics

CVSS 3.0 5.3/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
Mozilla	Firefox	>= unspecified, < 56
Mozilla	Firefox ESR	>= unspecified, < 52.4
Mozilla	Thunderbird	>= unspecified, < 52.4

References

http://www.securityfocus.com/bid/101059Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039465Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1390980Issue Tracking, Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1393624Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00000.htmlThird Party Advisory
https://security.gentoo.org/glsa/201803-14Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-21/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-22/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-23/Vendor Advisory
http://www.securityfocus.com/bid/101059Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039465Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1390980Issue Tracking, Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1393624Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00000.htmlThird Party Advisory
https://security.gentoo.org/glsa/201803-14Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-21/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-22/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-23/Vendor Advisory

Timeline

Published: Jun 11, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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