# Mozilla Firefox (en-US) 118.0

Mozilla Firefox (en-US) 118.0, released September 26, 2023, fixes 9 CVEs in Mozilla Firefox (en-US). None of them is reported as exploited. Patch Radar priority: Urgent. The latest Mozilla Firefox (en-US) is 159.0, which also fixes every one of these CVEs.

- Web page: https://patchblox.com/security/fix/windows-app/mozilla.firefox-118.0
- Platform: Windows apps
- Released: Sep 26, 2023
- Priority: Urgent (Closes CVE-2023-5176, rated Critical)
- CVEs: 9, exploited: 0, on CISA KEV: 0
- Superseded by: [Mozilla Firefox (en-US) 159.0](https://patchblox.com/security/data/product/windows-app/mozilla-firefox-en-us.md), the latest version, which also fixes every CVE listed here

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Mozilla Firefox (en-US)](https://patchblox.com/security/data/product/windows-app/mozilla-firefox-en-us.md) |  | 118.0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-5176](https://patchblox.com/security/data/cve/CVE-2023-5176.md) | Urgent | Mozilla Firefox ESR and 5 others: Out-of-bounds Write | 9.8 | 0.0139 |  |
| [CVE-2023-5174](https://patchblox.com/security/data/cve/CVE-2023-5174.md) | Urgent | Mozilla Firefox ESR and 5 others: Use After Free | 9.8 | 0.0120 |  |
| [CVE-2023-5168](https://patchblox.com/security/data/cve/CVE-2023-5168.md) | Urgent | Mozilla Firefox ESR and 5 others: Out-of-bounds Write | 9.8 | 0.0112 |  |
| [CVE-2023-5175](https://patchblox.com/security/data/cve/CVE-2023-5175.md) | High | Mozilla Firefox ESR and 3 others: Use After Free | 9.8 | 0.0104 |  |
| [CVE-2023-5172](https://patchblox.com/security/data/cve/CVE-2023-5172.md) | High | Mozilla Firefox ESR and 3 others: Use After Free | 9.8 | 0.0101 |  |
| [CVE-2023-5173](https://patchblox.com/security/data/cve/CVE-2023-5173.md) | High | Mozilla Firefox ESR and 3 others: In a non-standard configuration of Firefox, an integer overflow could have occurred based on network… | 7.5 | 0.0091 |  |
| [CVE-2023-5170](https://patchblox.com/security/data/cve/CVE-2023-5170.md) | High | Mozilla Firefox ESR and 3 others: In canvas rendering, a compromised content process could have caused a surface to change unexpectedly,… | 7.4 | 0.0072 |  |
| [CVE-2023-5171](https://patchblox.com/security/data/cve/CVE-2023-5171.md) | Routine | Mozilla Firefox ESR and 5 others: During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing… | 6.5 | 0.0112 |  |
| [CVE-2023-5169](https://patchblox.com/security/data/cve/CVE-2023-5169.md) | Routine | Mozilla Firefox ESR and 5 others: A compromised content process could have provided malicious data in a `PathRecording` resulting in an… | 6.5 | 0.0110 |  |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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