CVE-2019-11756

HIGH
8.8
CVSS Score
Published: January 8, 2020 at 07:23 PM UTC
Updated: June 17, 2026 at 02:13 AM UTC
1 product affected across 1 vendorFirefox

Using Firefox by Mozilla?

Get instant alerts when new vulnerabilities affect Firefox - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.8
Exploit prediction
EPSS 1%

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.

Affected

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

v < 71
Affected range stops below 71, so it looks safe — our inference, not a vendor statement
Affected range stops below 71.0, 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_CONFIRMIssue TrackingPermissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1508776

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card