CVE-2026-4744

Severity CVSS v4.0:

CRITICAL

Type:

CWE-125 Out-of-bounds Read

Publication date:

24/03/2026

Last modified:

24/03/2026

Description

Out-of-bounds Read vulnerability in rizonesoft Notepad3 (‎scintilla/oniguruma/src modules). This vulnerability is associated with program files regcomp.C‎.<br /> <br /> This issue affects Notepad3: before 6.25.714.1.

Impact

Vector 4.0

CVSS:4.0/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 CVSS v4.0 Severity and Metrics:

Base Score: 9.30 CRITICAL
Vector: CVSS:4.0/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

Attack Vector (AV): Local
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): None
User Interaction (UI): Active
Confidentiality (VC): High
Integrity (VI): High
Availability (VA): High
Confidentiality (SC): High
Integrity (SI): High
Availability (SA): High
Safety (S): Negligible
Automatable (AU): No
Recovery (R): User
Value Density (V): Diffuse
Vulnerability Response Effort (RE): Low
Provider Urgency (U): Amber
Exploit Maturity (E): Attacked

Base Score 4.0

9.30

Severity 4.0

CRITICAL

References to Advisories, Solutions, and Tools

https://github.com/rizonesoft/Notepad3/pull/5392