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CVE-2016-1962

CRITICAL

Use-after-free vulnerability in the mozilla::DataChannelConnection::Close function in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 allows remote attackers to execute arbitrary code by leveraging mishandling of WebRTC data-channel connections.

Published: Mar 13, 2016 Modified: Jun 17, 2026

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

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

Affected Products (18)

Vendor Product Version
mozilla firefox *
mozilla firefox 38.0
mozilla firefox 38.0.1
mozilla firefox 38.0.5
mozilla firefox 38.1.0
mozilla firefox 38.1.1
mozilla firefox 38.2.0
mozilla firefox 38.2.1
mozilla firefox 38.3.0
mozilla firefox 38.4.0
mozilla firefox 38.5.0
mozilla firefox 38.5.1
mozilla firefox 38.6.0
mozilla firefox 38.6.1
opensuse opensuse 13.1
oracle linux 5.0
oracle linux 6
oracle linux 7

GitHub Security Advisory GHSA-v73h-33mh-g974

Use-after-free vulnerability in the mozilla::DataChannelConnection::Close function in Mozilla...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 6.08%

Top 7% most likely to be exploited

Threat Score 41 / 100

Data Sources

NVD EPSS GitHub