CVE-2018-11314

The External Control API in Roku and Roku TV products allow unauthorized access via a DNS Rebind...

9.6 Critical

The External Control API in Roku and Roku TV products allow unauthorized access via a DNS Rebind attack. This can result in remote device control and privileged device and network information to be exfiltrated by an attacker.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.93%Up 1.3 points since Apr 14, 2021

What each source reports

NVD Score used 9.6

Record: CVE-2018-11314
CVSS 3.0: 9.6 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS 2.0: 9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-11314
Updated: 2026-11-02

EUVDEUVD-2018-3353 No score

Record: EUVD-2018-3353
Updated: 2026-11-03

GitHub AdvisoriesGHSA-chc2-rvc6-vpg5 9.6

The External Control API in Roku and Roku TV products allow unauthorized access via a DNS Rebind...

Record: GHSA-chc2-rvc6-vpg5
CVSS 3.0: 9.6 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness: CWE-20
Updated: 2026-11-02

Affected products

roku firmware

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-11314 is a critical vulnerability (CVSS 9.6) in Roku Firmware, published July 3, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.93%, the 80th percentile. No source names a fixed version.