# CVE-2023-37205: Mozilla Firefox and 2 others: The use of RTL Arabic characters in the address bar may have allowed for URL spoofing.

CVE-2023-37205 is fixed in 5 products on 2 platforms, first by Mozilla Firefox (en-US) 115.0, released July 4, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-37205
- Priority: Routine
- CVSS: 6.5 (Medium)
- EPSS: 0.0052
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 5, 2023
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-37205

## Description

The use of RTL Arabic characters in the address bar may have allowed for URL spoofing. This vulnerability affects Firefox < 115.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox (en-US) | 115.0 | [Mozilla Firefox (en-US) 115.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-115.0.md) | Jul 4, 2023 |
| Windows apps | Mozilla Firefox ESR (en-US) | 115.4.0 | [Mozilla Firefox ESR (en-US) 115.4.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-115.4.0.md) | Oct 17, 2023 |
| Linux | firefox Ubuntu 20.04 LTS (focal) | 115.0+build2-0ubuntu0.20.04.3 | [firefox 115.0+build2-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-115.0-build2-0ubuntu0.20.04.3.md) | Jul 5, 2023 |
| Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 115.0+build2-0ubuntu0.20.04.3 | [firefox-geckodriver 115.0+build2-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-115.0-build2-0ubuntu0.20.04.3.md) | Jul 5, 2023 |
| Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 115.0+build2-0ubuntu0.20.04.3 | [firefox-mozsymbols 115.0+build2-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-115.0-build2-0ubuntu0.20.04.3.md) | Jul 5, 2023 |

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Data as of 2026-11-08T06:59:42Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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