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.
Metrics
Affected Vendors & Products
References
History
Tue, 04 Nov 2025 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* |
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* |
| Vendors & Products |
Mozilla firefox Esr
|
Wed, 22 Oct 2025 00:15:00 +0000
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|---|---|---|
| References |
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Tue, 21 Oct 2025 20:30:00 +0000
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| References |
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Tue, 21 Oct 2025 19:30:00 +0000
| Type | Values Removed | Values Added |
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| References |
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Fri, 07 Feb 2025 13:15:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
kev
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Wed, 14 Aug 2024 00:45:00 +0000
| Type | Values Removed | Values Added |
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| References |
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Status: PUBLISHED
Assigner: mozilla
Published: 2020-04-24T15:56:56.000Z
Updated: 2025-10-21T23:35:45.566Z
Reserved: 2020-01-10T00:00:00.000Z
Link: CVE-2020-6819
Updated: 2024-08-04T09:11:05.160Z
Status : Analyzed
Published: 2020-04-24T16:15:13.370
Modified: 2025-11-04T14:34:52.090
Link: CVE-2020-6819