# CVE-2025-6703: firefox: Improper Input Validation vulnerability in Mozilla neqo leads to an unexploitable crash..This issue affects neqo: fro...

CVE-2025-6703 is fixed in 3 products on 1 platform, first by ALAS2023-2025-1171, released August 27, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-6703
- Priority: High
- CVSS: n/a (important)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 27, 2025

## Description

Improper Input Validation vulnerability in Mozilla neqo leads to an unexploitable crash..This issue affects neqo: from 0.4.24 through 0.13.2.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | firefox amzn 2023 | 140.2.0-1.amzn2023.0.1 | [ALAS2023-2025-1171](https://patchblox.com/security/data/fix/linux/alas2023-2025-1171.md) | Aug 27, 2025 |
| Linux | firefox-debuginfo amzn 2023 | 140.2.0-1.amzn2023.0.1 | [ALAS2023-2025-1171](https://patchblox.com/security/data/fix/linux/alas2023-2025-1171.md) | Aug 27, 2025 |
| Linux | firefox-debugsource amzn 2023 | 140.2.0-1.amzn2023.0.1 | [ALAS2023-2025-1171](https://patchblox.com/security/data/fix/linux/alas2023-2025-1171.md) | Aug 27, 2025 |

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Data as of 2026-11-11T19:49:26Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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