What’s Vulnerable › Vulnerabilities

CVE-2026-92033: Privilege escalation in Firefox for Android

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-15 · updated 2026-10-05
• Weakness: CWE-269

Description

Privilege escalation in Firefox for Android. This vulnerability was fixed in Firefox 156.

Affected products

• Mozilla Firefox for Android: before 156.0 — fixed in 156.0

How to fix

Upgrade to a fixed version: Mozilla Firefox for Android 156.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2047339
• https://www.mozilla.org/security/advisories/mfsa2026-90/

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