Buffer overflow in Notepad-plus-plus Notepad\+\+

CVE-2019-16294

SciLexer.dll in Scintilla in Notepad++ (x64) before 7.7 allows remote code execution or denial of service via Unicode characters in a crafted .ml file.

Vulnerability class: Buffer Overflow

EPSS: 0.098 (95.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-16294?
CVE-2019-16294 is a high-severity vulnerability in Notepad-plus-plus Notepad\+\+, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2019-09-14.
How severe is CVE-2019-16294?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2019-16294 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.