CVE-2026-117609 rtl_433 through 25.12 Stack-Based Buffer Overflow via Proflame 2 Decoder
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-117609?
CVE-2026-117609 is a high-severity vulnerability in merbanan rtl_433, published on 28 Oct 2026.
Official 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.
Weakness: CWE-121
Which versions are affected by CVE-2026-117609?
How do I fix CVE-2026-117609?
No fix has been published for CVE-2026-117609 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-117609 being exploited?
There is no known exploitation of CVE-2026-117609 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-117609, GHSA-mq9h-jmwj-r2r4, UBUNTU-CVE-2026-117609.