CVE-2026-74942
Received
Received - Intake
Privilege Escalation in Firefox Remote Settings Client
Vulnerability report for CVE-2026-74942, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-08-18
Last updated on: 2026-08-18
Assigner: Mozilla Corporation
Description
Description
Privilege escalation in the Remote Settings Client component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, and Firefox ESR 153.1.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mozilla | firefox | to 154 (inc) |
| mozilla | firefox_esr | to 115.39 (inc) |
| mozilla | firefox_esr | to 140.14 (inc) |
| mozilla | firefox_esr | to 153.1 (inc) |
| mozilla | firefox | 154 |
| mozilla | firefox_esr | 115.39 |
| mozilla | firefox_esr | 140.14 |
| mozilla | firefox_esr | 153.1 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |