60
CVE-2026-48770
PoC —CVSS 3.1
5.0 medium
EPSS
<1%p4
Published
()
Modified
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.
- Vendors
- notepad-plus-plus
- Products
- notepad\+\+
- Weakness
- CWE-125
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H