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CVE-2019-9821

CVSS v3.0 8.1 (High)
81% Progress
CVSS v2.0 6.8 (Medium)
68% Progress
EPSS 0.24 % (65th)
0.24% Progress
Affected Products 1
Advisories 5
Info CVSS EPSS CAPEC Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

A use-after-free vulnerability can occur in AssertWorkerThread due to a race condition with shared workers. This results in a potentially exploitable crash. This vulnerability affects Firefox < 67.

Weaknesses
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-416
Use After Free
CVE Status
PUBLISHED
CNA
Mozilla Corporation
Published Date
2019-07-23 14:15:17
(5 years ago)
Updated Date
2021-07-21 11:39:23
(3 years ago)

Affected Products

Mozilla

Configuration #1

    CPE23 From Up To
  Mozilla Firefox prior 67.0 version cpe:2.3:a:mozilla:firefox < 67.0