Samsung uses Tizen on its TVs, some smartphones, and its smartwatches.
Amihai Neiderman, who will make a presentation on the security issues with Tizen at the Security Analyst Summit organised by Kaspersky Lab on St Maarten Island, described Tizen as having up to 40 zero-day exploits, according to the Droid Report.
Last month, the whistleblower website WikiLeaks published documents from the CIA in which it was stated that the agency had access to vulnerabilities using which it install malware to monitor people who were using Samsung's smart TVs.
But Neiderman's report claims that the entry points to the TVs are much wider, given the use of Tizen, which runs about 30 million TV sets. Samsung plans to run about 10 million of its smartphones on Tizen by the end of this year.
Samsung was quoted as saying it was fully committed to co-operating with the Israeli expert “to mitigate any potential vulnerabilities".
This is not the first time that such flaws in Samsung's TVs have been reported.
In February, Rafael Scheel of Oneconsult gave a demonstration at the European Broadcasting Union Media Cyber Security Seminar, using terrestrial radio signals to hack Samsung Smart TVs remotely. Scheel also said similar bugs could possibly be found in smart TV sets made by other companies.