Unrated severityOSV Advisory· Published Dec 18, 2025· Updated Mar 23, 2026
merbanan/rtl_433 <= 25.02 Stack-based Buffer Overflow
CVE-2025-34450
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.
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Affected products
2Patches
Vulnerability mechanics
References
4- github.com/dd32/rtl_433/commit/25e47f8mitrepatch
- github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-004-rtl_433-rfraw-parse-overflow.mdmitretechnical-descriptionexploit
- www.vulncheck.com/advisories/merbanan-rtl-433-stack-based-buffer-overflowmitrethird-party-advisory
- github.com/merbanan/rtl_433/issues/3375mitreissue-tracking
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