There is out a new flashplugin v 11.2.202.356. But no security warnings available so far. Therefore I am posting this here (and not in update warnings).
Manual install:
Go to http://get.adobe.com/de/flashplayer/
dl tar file (32 or 64 bit depending on your system)
then
# 32 bit
tar -xf install_flash_player_11_linux.i386.tar.gz
cp -r usr/* /usr
cp libflashplayer.so /usr/lib/flashplugin-nonfree/
# 64 bit
tar -xf install_flash_player_11_linux.x86_64.tar.gz
cp -r usr/* /usr
cp libflashplayer.so /usr/lib/flashplugin-nonfree/
Script install:
this will need a few days until the Debian maintainer catches up. With my script you get a daily warning until it's done.