CVE-2026-84127

4.3 mediumEPSS 0.3%

Medium (4.3) in mozilla firefox mobile. EPSS 0.3% chance of exploitation in the next 30 days.

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

Severity

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 17% of CVEs (scores of 2026-10-31)
CWE: CWE-200
Published: 2026-09-01
Modified: 2026-09-03
Record from: the NVD, synced 2026-10-19