Parallels informed of two flaws in Parallels Plesk Panel 10.x. Vulnerabilities allow to compromise user’s system and launch DoS attack.
The first is due to budled flawed ProFTPD version that contains use-after-free vulnerability. The flaw affects only Linux versions.
The second vulnerability, that affects only Windows platform, is due to bundled flawed ISC BIND. The highly critical flaw allows to launch DoS attack.
Parallels published patches.

Source: Secunia
02.12.2011