CVE-2026-84117
published 2026-09-01CVE-2026-84117: Privilege escalation in Firefox for Android. This vulnerability was fixed in Firefox 155.
PriorityP346high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.35%
27.0th percentile
Privilege escalation in Firefox for Android. This vulnerability was fixed in Firefox 155.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 155 | Firefox 155 |
| mozilla | firefox_mobile | < 155.0 | 155.0 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat8.8HIGH
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VulDB
Mozilla Firefox up to 154 Android privileges management
vuldb·2026-09-07·CVSS 8.8
CVE-2026-84117 [HIGH] Mozilla Firefox up to 154 Android privileges management
A vulnerability described as critical has been identified in Mozilla Firefox up to 154. The affected element is an unknown function of the component Android. Executing a manipulation can lead to improper privilege management.
This vulnerability is tracked as CVE-2026-84117. The attack can be launched remotely. No exploit exists.
Upgrading the affected component is recommended.
GHSA
Privilege escalation in Firefox for Android.
ghsa_unreviewed·2026-09-01
CVE-2026-84117 [HIGH] CWE-284 Privilege escalation in Firefox for Android.
Privilege escalation in Firefox for Android. This vulnerability was fixed in Firefox 155.
Red Hat
firefox: Privilege escalation in Firefox for Android
vendor_redhat·2026-09-01·CVSS 8.8
CVE-2026-84117 [HIGH] CWE-266 firefox: Privilege escalation in Firefox for Android
firefox: Privilege escalation in Firefox for Android
Privilege escalation in Firefox for Android. This vulnerability was fixed in Firefox 155.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
Privilege escalation in Firefox for Android
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Not affected
Package: rhel10/firefox-flatpak (Red Hat Enterprise Linux 10) - Not affected
Package: firefox (Red Hat Enterprise Linux 6) - Not affected
Package: firefox (Red Hat Enterprise Linux 7) - Not affected
Package: firefox (Red Hat Enterprise Linux 8) - Not affected
Package: firefox (Red Hat Enterprise Linux 9) - Not
Mozilla
Mozilla Foundation Security Advisory 2026-82: CVE-2026-84117
vendor_mozilla·CVSS 8.8
CVE-2026-84117 [HIGH] Mozilla Foundation Security Advisory 2026-82: CVE-2026-84117
Mozilla Foundation Security Advisory 2026-82
CVE: CVE-2026-84117
Product: Firefox
Impact: high
Fixed in: Firefox 155
No detection rules found.
No public exploits indexed.
Hackernews
⚡ Weekly Recap: Chrome 0-Day, Router Hijacks, Coder Supply Chain Attack and More
blogs_hackernews·2026-09-07·CVSS 6.9
CVE-2026-86206 [MEDIUM] ⚡ Weekly Recap: Chrome 0-Day, Router Hijacks, Coder Supply Chain Attack and More
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Bugzilla
CVE-2026-84117 firefox: Privilege escalation in Firefox for Android
bugzilla·2026-09-01·CVSS 8.8
CVE-2026-84117 [HIGH] CVE-2026-84117 firefox: Privilege escalation in Firefox for Android
CVE-2026-84117 firefox: Privilege escalation in Firefox for Android
Privilege escalation in Firefox for Android. This vulnerability was fixed in Firefox 155.
2026-09-01
Published