Yeah, I agree that 13 days from the last contact was maybe a bit too fast. But they haven't replied to this day and I reported the vuln two months earlier without response!
P.S. sorry for the american time dates, I don't know what I was thinking lol.
Hey! Congrats on the reverse engineering work and all the time you put in your research. As you and many other people have already said, RIGOL scopes are not exactly a security fortress, so this exploit I've found isn't impressive at all.
After finding the vuln, I checked online if someone else had already found the vuln, and I admit I have come across the EEVblog, but I didn't find the exact vuln I found (I also must admit I didn't read all the posts there).
I am sorry if I have in some way disrespected your work, but it wasn't my intention at all!
P.S. sorry for the american time dates, I don't know what I was thinking lol.