Vulnerability Description
rtl_433 through 25.12 contains a stack-based buffer overflow vulnerability in proflame2_mc() 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 rtl_433 and corrupt stack memory, enabling control-flow hijacking on builds without stack canaries.
CVSS Score
HIGH
Related Weaknesses (CWE)
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/f35183aaf1d2d905d422fd70bcae4eb7349d6
- 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-ov
FAQ
What is CVE-2026-117609?
CVE-2026-117609 is a vulnerability with a CVSS score of 7.1 (HIGH). rtl_433 through 25.12 contains a stack-based buffer overflow vulnerability in proflame2_mc() that allows nearby attackers to write past a 7-byte stack buffer by sending more than seven valid Mancheste...
How severe is CVE-2026-117609?
CVE-2026-117609 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-117609?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.