CVE-2023-40031

7.8 highEPSS 0.5%

High (7.8) in notepad-plus-plus notepad\+\+. EPSS 0.5% chance of exploitation in the next 30 days.

Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to heap buffer write overflow in `Utf8_16_Read::convert`. This issue may lead to arbitrary code execution. As of time of publication, no known patches are available in existing versions of Notepad++.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-31)
CWEs: CWE-120, CWE-122
Published: 2023-08-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

notepad-plus-plus:notepad\+\+

References

https://securitylab.github.com/advisories/GHSL-2023-092_Notepad__/
https://securitylab.github.com/advisories/GHSL-2023-092_Notepad__/

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