I am the project leader and the maintainer of Notepad++.
Regarding your report, Notepad++ has a vulnerable issue due to a buffer
issue (Bugtraq ID: 36426).
Several tests with Notepad++ v5.4.5 and the Notepad++ v5.6.1 (latest
are processed under XP SP3 and Vista SP1.
However, the buffer overflow issue (crash) can not be reproduced at all
provided exploit :
Could you check again this vunerable issue?
Thank you in advance