Vulnerability DatabaseCVE-2016-5277
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CVE-2016-5277
Published:September 22, 2016
Updated:May 17, 2026
Use-after-free vulnerability in the nsRefreshDriver::Tick function in Mozilla Firefox before 49.0, Firefox ESR 45.x before 45.4, and Thunderbird < 45.4 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by leveraging improper interaction between timeline destruction and the Web Animations model implementation.
Related Resources (13)
https://access.redhat.com/security/cve/CVE-2016-5277
https://www.mozilla.org/security/advisories/mfsa2016-88/
http://www.mozilla.org/security/announce/2016/mfsa2016-85.html
http://rhn.redhat.com/errata/RHSA-2016-1912.html
http://www.debian.org/security/2016/dsa-3674
http://www.securityfocus.com/bid/93049
https://people.canonical.com/~ubuntu-security/cve/CVE-2016-5277
http://www.securitytracker.com/id/1036852
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
https://security-tracker.debian.org/tracker/CVE-2016-5277
https://security.gentoo.org/glsa/201701-15
https://bugzilla.mozilla.org/show_bug.cgi?id=1291665
https://www.mozilla.org/security/advisories/mfsa2016-86/
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CVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Use After Free
CWE-416
EPSS
Base Score:
2.26