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Under certain conditions, when running the nsDocShell...

Moderate severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Feb 7, 2025

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

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.

References

Published by the National Vulnerability Database Apr 24, 2020
Published to the GitHub Advisory Database May 24, 2022
Last updated Feb 7, 2025

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(95th percentile)

Weaknesses

CVE ID

CVE-2020-6819

GHSA ID

GHSA-cv8q-mpvf-42h2

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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