CVE-2026-73250

unknowncovered by 1 sourcefirst seen 2026-08-11

Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the Notepad++ Windows 11 x64 and ARM64 installer passes the attacker-influenced installation directory $INSTDIR from PowerEditor/installer/nppSetup.nsi into a PowerShell -Command string used by RegisterMSIX to invoke Add-AppxPackage, allowing PowerShell subexpression syntax such as $() in the installation path to execute commands in the installer's security context when the context menu component is selected. This issue is fixed in version 8.9.7.

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Exploitation outlook

Low exploitation risk0.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownCVE-2026-73250: Notepad++ is a free and open-source source code editor. Prior to 8.9.7, the Notepad++ Windows …nvd · 2026-08-11

External references

NVD record for CVE-2026-73250

CVE.org record

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