CVE-2026-6756: Mitigation bypass in Firefox for Android

Published Apr 21, 2026
·
Updated

Mitigation bypass in Firefox for Android. This vulnerability was fixed in Firefox 150.

Affected Software

2 affected componentsFixes available
Mozilla Firefox<150
150
Mozilla Firefox<150.0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 150
  2. Upgrade

    Upgrade Firefox for Android to a version that resolves this vulnerability.

    Fixed in 150

Event History

Apr 21, 2026
CVE Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
CVE Published
via MITRE·12:40 PM
Data Sourced
via MITRE·12:40 PM
Description
Data Sourced
via NVD·01:16 PM
DescriptionSeverityWeaknessAffected Software
May 21, 58279
Event
via FIRST·07:40 AM

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-6756?

CVE-2026-6756 has been designated a high severity vulnerability due to its potential impact on user security.

2

How do I fix CVE-2026-6756?

To fix CVE-2026-6756, upgrade to Firefox version 150 or later.

3

What does CVE-2026-6756 affect?

CVE-2026-6756 affects Firefox for Android versions prior to 150.

4

What type of vulnerability is CVE-2026-6756?

CVE-2026-6756 is classified as a mitigation bypass vulnerability.

5

When was CVE-2026-6756 discovered?

CVE-2026-6756 was reported and subsequently fixed in Firefox version 150.

Contact

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