CVE-2026-48770
MEDIUM SEVERITYCVSS Score & Metrics
Base Score
5.0 / 10
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Vulnerability Description
Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, a local process in the same interactive Windows session can send a malformed WM_COPYDATA message to Notepad++ using the COPYDATA_FULL_CMDLINE path. The handler appears to process COPYDATASTRUCT.lpData as an unbounded NUL-terminated wchar_t* instead of enforcing COPYDATASTRUCT.cbData. This vulnerability is fixed in 8.9.6.1.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-125
Source
NVD
Vendor
notepad-plus-plus
Product
notepad-plus-plus
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