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CVE-2017-5430

CRITICAL

Memory safety bugs were reported in Firefox 52, Firefox ESR 52, and Thunderbird 52. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

Published: Jun 11, 2018 Modified: Jun 17, 2026
CWE-119

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 (6)

Vendor Product Version
redhat enterprise_linux_desktop 7.0
redhat enterprise_linux_server 7.0
redhat enterprise_linux_workstation 7.0
mozilla firefox * < 52.1.0
mozilla firefox * < 53.0
mozilla thunderbird * < 52.1.0

GitHub Security Advisory GHSA-4x26-g6p5-4wpg

Memory safety bugs were reported in Firefox 52, Firefox ESR 52, and Thunderbird 52. Some of these...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 2.97%

Top 14% most likely to be exploited

Threat Score 40.1 / 100

Data Sources

NVD EPSS GitHub