CVE-2020-6805
Mozilla: Use-after-free when removing data about origins
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Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 10, 2020
Updated · November 22, 2025
Description
The Mozilla Foundation Security Advisory describes this flaw as:
When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-416 · Use After Free