8.8

CVE-2026-92033: mozilla firefox_mobile Improper Privilege Management

CVSS: 8.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-92033CGA-qfcp-243x-86j5CGA-w79v-8qcw-6rg4
Published 15-09-2026Last modified 16-09-2026
Open JSON

Vulnerability summary

CVE-2026-92033 is a high (CVSS 8.8) Improper Privilege Management vulnerability in mozilla firefox_mobile. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 26.9% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.35%
0%100%
Low · +0.14 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:11826-1

Timeline

  1. 15-09-2026
    PublishedVulnerability first disclosed.
  2. 16-09-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.35%

Chance of exploitation in the next 30 days

Percentile

27%

Versus all other CVEs

30-day change

+0.14 pp

From 0.21% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.35%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu8 products
  • mozjs102All versions (No fix recorded)
  • mozjs115All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Chainguard1 product
  • firefox-esr-140All versions (No fix recorded)
Mozilla1 product

3 vendors · 10 products

References

5 links