CVE-2026-117609

CVSS 7.1 (high) · published 2026-10-28

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.

Weakness: CWE-121

Source: NVD CVE-2026-117609

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

Check your software

Connect an AI agent to the FixLane MCP server or ask the Telegram bot to check what you have installed against incidents with a verified fixed version.