CVE-2026-117609 rtl_433 - Buffer Overflow

rtl_433 through 25.12 contains a stack-based buffer overflow caused by improper handling of more than seven valid Manchester-coded words in proflame2_mc(), letting nearby attackers hijack control flow via crafted OOK radio signals or signal files, exploit requires proximity to transmit crafted signals.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.35% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Remote Code Execution, Denial Of Service
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Published
28 October 2026
Updated
29 October 2026
Weakness
CWE-121

Vendor fix

Update rtl_433 to a version later than 25.12 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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