CVE-2019-9821

N/A
Published: July 23, 2019 at 01:23 PM UTC
Updated: June 17, 2026 at 02:44 AM UTC
1 product affected across 1 vendorFirefox

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Severity
N/A
Exploit prediction
EPSS 0.8%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 67
Affected range stops below 67, so it looks safe — our inference, not a vendor statement
Affected range stops below 67.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_MISCPermissions RequiredVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1539125

CVSS

Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362CWE-416

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