# CVE-2025-34450: rtl-433: merbanan/rtl_433 versions up to and including 25.02 and prior to commit 25e47f8 contain a stack-based buffer overflow...

CVE-2025-34450 is fixed in rtl-433 on 1 platform, first by DEBIAN-CVE-2025-34450, released December 18, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-34450
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0023
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 18, 2025

## Description

merbanan/rtl_433 versions up to and including 25.02 and prior to commit 25e47f8 contain a stack-based buffer overflow vulnerability in the function parse_rfraw() located in src/rfraw.c. When processing crafted or excessively large raw RF input data, the application may write beyond the bounds of a stack buffer, resulting in memory corruption or a crash. This vulnerability can be exploited to cause a denial of service and, under certain conditions, may be leveraged for further exploitation depending on the execution environment and available mitigations.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | rtl-433 Debian 13.5 (trixie) | 25.02-1+deb13u1 | [DEBIAN-CVE-2025-34450](https://patchblox.com/security/data/fix/linux/debian-cve-2025-34450.md) | Dec 18, 2025 |
| Linux | rtl-433 Debian 14 | 25.12-1 | [DEBIAN-CVE-2025-34450](https://patchblox.com/security/data/fix/linux/debian-cve-2025-34450.md) | Dec 18, 2025 |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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