CVE-2014-9456: Buffer overflow in NotePad++ 6.6.9 allows remote attackers to have unspecified impact via a long Time attri...

Security readout for executives and security teams

CVE-2014-9456 is a buffer overflow reported in Notepad++ 6.6.9 when processing a crafted XML file. The public record says impact is unspecified, so business risk depends on whether this old version remains installed and whether users open untrusted XML files. Exposure is most plausible on endpoints still running Notepad++ 6.6.9, especially where users receive or open XML files from untrusted sources. The bundle does not identify other affected versions or products. Treat this as an aging endpoint hygiene issue unless Notepad++ 6.6.9 is found in active use. Prioritize inventory and removal because public exploit information exists, but the provided sources do not establish active exploitation or severity. Mitigation focus: Inventory endpoints for Notepad++ 6.6.9.; Check current Notepad++ vendor guidance and upgrade guidance.; Remove or replace obsolete Notepad++ installations where feasible..

Prepared

Jun 14, 2026, 05:41 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.