# Mozilla Firefox (en-US) 110.0

Mozilla Firefox (en-US) 110.0, released February 16, 2023, fixes 19 CVEs in Mozilla Firefox (en-US). None of them is reported as exploited. Patch Radar priority: High. 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-110.0
- Platform: Windows apps
- Released: Feb 16, 2023
- Priority: High (Closes CVE-2023-0767, high severity)
- CVEs: 19, 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- Superseded by: [Mozilla Firefox (en-US) 159.0](https://patchblox.com/security/data/product/windows-app/mozilla-firefox-en-us.md), the latest version, which also fixes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) |  | 110.0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-0767](https://patchblox.com/security/data/cve/CVE-2023-0767.md) | High | Mozilla Firefox and 4 others: An attacker could construct a PKCS 12 cert bundle in such a way that could allow for arbitrary memory… | 8.8 | 0.0082 |  |
| [CVE-2023-25734](https://patchblox.com/security/data/cve/CVE-2023-25734.md) | High | Mozilla Firefox and 4 others: URL Redirection to Untrusted Site ('Open Redirect') | 8.1 | 0.0078 |  |
| [CVE-2023-25732](https://patchblox.com/security/data/cve/CVE-2023-25732.md) | High | Mozilla Firefox and 4 others: Out-of-bounds Write | 8.8 | 0.0074 |  |
| [CVE-2023-25735](https://patchblox.com/security/data/cve/CVE-2023-25735.md) | High | Mozilla Firefox and 4 others: Use After Free | 8.8 | 0.0072 |  |
| [CVE-2023-25737](https://patchblox.com/security/data/cve/CVE-2023-25737.md) | High | Mozilla Firefox and 4 others: Incorrect Type Conversion or Cast | 8.8 | 0.0070 |  |
| [CVE-2023-25736](https://patchblox.com/security/data/cve/CVE-2023-25736.md) | High | Mozilla Firefox and 2 others: An invalid downcast from `nsHTMLDocument` to `nsIContent` could have lead to undefined behavior. | 9.8 | 0.0069 |  |
| [CVE-2023-25739](https://patchblox.com/security/data/cve/CVE-2023-25739.md) | High | Mozilla Firefox and 4 others: Use After Free | 8.8 | 0.0068 |  |
| [CVE-2023-25729](https://patchblox.com/security/data/cve/CVE-2023-25729.md) | High | Mozilla Firefox and 4 others: Incorrect Authorization | 8.8 | 0.0068 |  |
| [CVE-2023-25744](https://patchblox.com/security/data/cve/CVE-2023-25744.md) | High | Mozilla Firefox and 2 others: Mmemory safety bugs present in Firefox 109 and Firefox ESR 102.7. | 8.8 | 0.0067 |  |
| [CVE-2023-25728](https://patchblox.com/security/data/cve/CVE-2023-25728.md) | High | Mozilla Firefox and 4 others: Observable Discrepancy | 7.5 | 0.0067 |  |
| [CVE-2023-25745](https://patchblox.com/security/data/cve/CVE-2023-25745.md) | High | Mozilla Firefox and 2 others: Out-of-bounds Write | 8.8 | 0.0067 |  |
| [CVE-2023-25743](https://patchblox.com/security/data/cve/CVE-2023-25743.md) | High | Mozilla Firefox and 2 others: A lack of in app notification for entering fullscreen mode could have lead to a malicious website spoofing… | 7.5 | 0.0065 |  |
| [CVE-2023-25742](https://patchblox.com/security/data/cve/CVE-2023-25742.md) | High | Mozilla Firefox and 4 others: When importing a SPKI RSA public key as ECDSA P-256, the key would be handled incorrectly causing the… | 7.5 | 0.0065 |  |
| [CVE-2023-25733](https://patchblox.com/security/data/cve/CVE-2023-25733.md) | High | Mozilla Firefox and 2 others: Unchecked Return Value | 7.5 | 0.0062 |  |
| [CVE-2023-25731](https://patchblox.com/security/data/cve/CVE-2023-25731.md) | High | Mozilla Firefox and 2 others: Improper Validation of Specified Quantity in Input | 8.8 | 0.0056 |  |
| [CVE-2023-25730](https://patchblox.com/security/data/cve/CVE-2023-25730.md) | High | Mozilla Firefox and 4 others: Improper Restriction of Rendered UI Layers or Frames | 7.5 | 0.0055 |  |
| [CVE-2023-25740](https://patchblox.com/security/data/cve/CVE-2023-25740.md) | High | Mozilla Firefox and 2 others: Insufficiently Protected Credentials | 8.8 | 0.0052 |  |
| [CVE-2023-25741](https://patchblox.com/security/data/cve/CVE-2023-25741.md) | Routine | Mozilla Firefox and 2 others: Observable Discrepancy | 6.5 | 0.0077 |  |
| [CVE-2023-25738](https://patchblox.com/security/data/cve/CVE-2023-25738.md) | Routine | Mozilla Firefox and 4 others: Out-of-bounds Read | 6.5 | 0.0064 |  |

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Data as of 2026-11-09T01:18:40Z 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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