Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-84127 Details

Description

Information disclosure in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 155.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=1699444 [email protected]Issue TrackingExploit
https://www.mozilla.org/security/advisories/mfsa2026-82/ [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-200Exposure of Sensitive Information to an Unauthorized ActorCISA-ADP

Affected Products

ProductVersions
mozilla firefox mobile
< 155.0

CPE

  • cpe:2.3:a:mozilla:firefox_mobile:*:*:*:*:*:android:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-84127
NVD Published Date:
Sep 1, 2026
NVD Last Modified:
Sep 3, 2026
Source:
[email protected]
CVE-2026-84127 Details - Not Deferred