CVE-2026-2794: Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android

Published Feb 24, 2026
·
Updated

Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 148.

Affected Software

2 affected componentsFixes available
Mozilla Firefox<148
148
Mozilla Firefox<148.0

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 148
  2. Upgrade

    Upgrade firefox to a version that resolves this vulnerability.

    Fixed in 148
  3. Upgrade

    Upgrade firefox focus (android) to a version that resolves this vulnerability.

    Fixed in 148

Event History

Feb 24, 2026
CVE Published
via Mozilla·12:00 AM
Data Sourced
via Mozilla·12:00 AM
DescriptionSeverityAffected Software
CVE Published
via MITRE·01:33 PM
Data Sourced
via MITRE·01:33 PM
Description
Data Sourced
via Red Hat·02:02 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·02:16 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-2794?

CVE-2026-2794 is classified as a moderate severity vulnerability due to information disclosure risks.

2

How do I fix CVE-2026-2794?

To mitigate CVE-2026-2794, update Firefox and Firefox Focus for Android to version 148 or later.

3

What software is affected by CVE-2026-2794?

CVE-2026-2794 affects all versions of Firefox and Firefox Focus for Android prior to version 148.

4

What type of vulnerability is CVE-2026-2794?

CVE-2026-2794 is an information disclosure vulnerability caused by uninitialized memory.

5

When was CVE-2026-2794 disclosed?

CVE-2026-2794 was publicly disclosed in the security advisory dated 2026.

Company

Resources

Contact

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CVE-2026-2794 - Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android - SecAlerts