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Status published
Unknown
CVE-2020-6819
Under certain conditions, when running the nsDocShell destructor, a race...
Vulnerability Description
Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Mozilla
View all reports →Affected Software
Thunderbird, Firefox, Firefox ESR
Vulnerable Versions:
unspecified
Timeline
Official Publish:
April 24th, 2020
Last Modified:
October 21st, 2025
Added to House:
July 21st, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.