PT-2026-27321 · Rizone Soft · Notepad3

Titan Team · Published 2026-03-24 · Updated 2026-03-24 · CVE-2026-4744

Mitre

CVSS v4.0

9.3

Critical

AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:N/AU:N/R:U/V:D/RE:L/U:Amber

Out-of-bounds Read vulnerability in rizonesoft Notepad3 (‎scintilla/oniguruma/src modules). This vulnerability is associated with program files regcomp.C‎.

This issue affects Notepad3: before 6.25.714.1.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-4744

Affected Products

Notepad3

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-4744 · Security Note
• https://github.com/rizonesoft/Notepad3/pull/5392 · Patch