CVE-2018-5165

Mozilla: Checkbox for enabling Flash protected mode is inverted in 32-bit Firefox

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Severity

Low

Red Hat Product Security

5.4

CVSS 3.0

Review impact separately from score.

Published · May 9, 2018

Updated · November 22, 2025

Description

In 32-bit versions of Firefox, the Adobe Flash plugin setting for "Enable Adobe Flash protected mode" is unchecked by default even though the Adobe Flash sandbox is actually enabled. The displayed state is the reverse of the true setting, resulting in user confusion. This could cause users to select this setting intending to activate it and inadvertently turn protections off. This vulnerability affects Firefox < 60.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 5.4
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CWE-451 · User Interface (UI) Misrepresentation of Critical Information