CVE-2017-5402

9.8 CRITICAL
Published: June 11, 2018 Modified: November 25, 2025
View on NVD

Description

A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0459.html
Source: security@mozilla.org
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0461.html
Source: security@mozilla.org
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0498.html
Source: security@mozilla.org
Third Party Advisory
http://www.securityfocus.com/bid/96664
Source: security@mozilla.org
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037966
Source: security@mozilla.org
Third Party Advisory VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1334876
Source: security@mozilla.org
Issue Tracking Patch Vendor Advisory
https://security.gentoo.org/glsa/201705-06
Source: security@mozilla.org
Third Party Advisory
https://security.gentoo.org/glsa/201705-07
Source: security@mozilla.org
Third Party Advisory
https://www.debian.org/security/2017/dsa-3805
Source: security@mozilla.org
Third Party Advisory
https://www.debian.org/security/2017/dsa-3832
Source: security@mozilla.org
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-05/
Source: security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-06/
Source: security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-07/
Source: security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-09/
Source: security@mozilla.org
Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2017-0459.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0461.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0498.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.securityfocus.com/bid/96664
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037966
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1334876
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Vendor Advisory
https://security.gentoo.org/glsa/201705-06
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.gentoo.org/glsa/201705-07
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2017/dsa-3805
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2017/dsa-3832
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-05/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-06/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-07/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-09/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

28 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
2.5%
85th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-416

Affected Vendors

mozilla debian redhat

Related CVEs

CVE-2025-52691 10.0
CVE-2025-15168 7.3
CVE-2025-15167 7.3
CVE-2025-15166 7.3
CVE-2025-15165 7.3