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Security researchers in Israel have uncovered 40 previously undiscovered vulnerabilities in the operating system running in Samsung ’s line of smart televisions , smartwatches , and even mobile phones , which could give hackers easy access to the devices , Motherboard is reporting after discussing the findings with the researchers .
 ( discover vulnerability: have uncovered,  smart televisions: vulnerable system, the operating system: vulnerable system, 40 previously undiscovered vulnerabilities: vulnerability, Security researchers: discoverer, Samsung: discoverer) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
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Answer:
 ( discover vulnerability: have uncovered,  smart televisions: vulnerable system, the operating system: vulnerable system, 40 previously undiscovered vulnerabilities: vulnerability, Security researchers: discoverer, Samsung: discoverer) 