The Raiders also promoted TE Paul Butler and S Dallin Leavitt to their active roster.
Moore, 26, is a former third-round pick of the Giants back in 2013. He lasted over two years in New York before he was waived in December of last year.
The Dolphins wound up claiming him off of waivers from the Giants. However, he was later waived. Since then, Moore played for the Raiders, Seahawks and Cowboys before returning to Oakland a few weeks ago.
In 2018, Moore appeared in three games for the Cowboys and recorded five tackles and no sacks.