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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.

PUBLISHED Reserved 2025-04-15 | Published 2025-12-18 | Updated 2025-12-20 | Assigner VulnCheck




MEDIUM: 6.9CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-121 Stack-based Buffer Overflow

Product status

Default status
unaffected

Any version
affected

commit 25e47f8 (custom)
unaffected

Credits

Vlatko Kosturjak with Marlink Cyber finder

References

github.com/...CSAID-2025-004-rtl_433-rfraw-parse-overflow.md exploit

github.com/...CSAID-2025-004-rtl_433-rfraw-parse-overflow.md technical-description exploit

github.com/merbanan/rtl_433/issues/3375 issue-tracking

github.com/dd32/rtl_433/commit/25e47f8 patch

www.vulncheck.com/...nan-rtl-433-stack-based-buffer-overflow third-party-advisory

cve.org (CVE-2025-34450)

nvd.nist.gov (CVE-2025-34450)

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Data based on CVE®. Copyright © 1999-2025, The MITRE Corporation. All rights reserved.