CVE-2016-2821

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2, when contenteditable mode is enabled, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by triggering deletion of DOM elements that were created in the editor.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published
Jun 13, 2016
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2016-2821: High severity, CVSS 7.5 | Vulnix