CVE-2019-9818

HighCVSS 8.3/10Last modified Jun 17, 2026

Description

A race condition is present in the crash generation server used to generate data for the crash reporter. This issue can lead to a use-after-free in the main process, resulting in a potentially exploitable crash and a sandbox escape. *Note: this vulnerability only affects Windows. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

Metrics

CVSS 3.1 8.3/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-362 CWE-416

Affected software

Vendor	Product	Versions
Mozilla	Thunderbird	>= unspecified, < 60.7
Mozilla	Firefox	>= unspecified, < 67
Mozilla	Firefox ESR	>= unspecified, < 60.7

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1542581Issue Tracking, Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-13/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-15/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1542581Issue Tracking, Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-13/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-15/Vendor Advisory

Timeline

Published: Jul 23, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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