An Improper Enforcement of Behavioral Workflow vulnerability in the exchangeDeviceServices function on the amzn.dmgr service allowed an attacker to register services that are only locally accessible.
This issue affects:
Amazon Fire TV Stick 3rd gen versions prior to 6.2.9.5.
Insignia TV with FireOS versions prior to 7.6.3.3.
Severity
CVSS 3.1
4.3 medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS
0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)