CVE-2019-11756

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
Mozilla	Firefox	before 71

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1508776Issue Tracking, Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-36/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1508776Issue Tracking, Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-36/Vendor Advisory

Timeline

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

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