rtl433 through 25.12 contains a stack-based buffer overflow vulnerability in proflame2mc() that allows nearby attackers to write past a…
CVE-2026-117609
rtl433 through 25.12 contains a stack-based buffer overflow vulnerability in proflame2mc() that allows nearby attackers to write past a 7-byte stack buffer by sending more than seven valid Manchester-coded words. Attackers can transmit a crafted OOK radio signal or supply a crafted signal file to crash rtl433 and corrupt stack memory, enabling control-flow hijacking on builds without stack canaries.
Assessment
- CVSS
- 7.1 (v4.0)
- Severity
- High
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 28 October 2026
- Last updated
- 28 October 2026
- Weakness
- CWE-121
- Assigner
- disclosure@vulncheck.com
CVSS vectorCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
At the source
References
- https://github.com/merbanan/rtl_433
- https://github.com/merbanan/rtl_433/blob/25.12/src/devices/proflame2.c#L46-L95
- https://github.com/merbanan/rtl_433/commit/f35183aaf1d2d905d422fd70bcae4eb7349d6186
- https://github.com/merbanan/rtl_433/issues/3739
- https://github.com/merbanan/rtl_433/pull/3740
- https://www.vulncheck.com/advisories/rtl-433-through-25.12-stack-based-buffer-overflow-via-proflame-2-decoder
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