CVE-2019-17011

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-362

Affected software

VendorProductVersions
MozillaThunderbirdbefore 68.3
MozillaFirefox ESRbefore 68.3
MozillaFirefoxbefore 71

References

Timeline

Published
Jan 8, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2019

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CVE-2019-17011: High severity, CVSS 7.5 | Vulnix