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CVE-2026-2538— Flos Freeware Notepad2 Msimg32.dll uncontrolled search path

Quick assessment

Affected
Flos Freeware Notepad2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Notepad2是Florian Balmer个人开发者的一个文本编辑器。 Notepad2 4.2.22版本、4.2.23版本、4.2.24版本和4.2.25版本存在代码问题漏洞，该漏洞源于库Msimg32.dll中搜索路径不受控制，可能导致本地攻击。

CVSS 7.0 · High EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1574.002
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I. Basic Information for CVE-2026-2538

Vulnerability Information
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Vulnerability Title
Flos Freeware Notepad2 Msimg32.dll uncontrolled search path
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Flos Freeware Notepad2 4.2.22/4.2.23/4.2.24/4.2.25. Affected is an unknown function in the library Msimg32.dll. Performing a manipulation results in uncontrolled search path. Attacking locally is a requirement. The attack's complexity is rated as high. The exploitability is told to be difficult. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对搜索路径元素未加控制
Source: CVE Program / CVE List V5
Vulnerability Title
Notepad2 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Notepad2是Florian Balmer个人开发者的一个文本编辑器。 Notepad2 4.2.22版本、4.2.23版本、4.2.24版本和4.2.25版本存在代码问题漏洞，该漏洞源于库Msimg32.dll中搜索路径不受控制，可能导致本地攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Flos Freeware Notepad2 4.2.22 -

II. Public POCs for CVE-2026-2538

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III. Intelligence Information for CVE-2026-2538

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IV. Related Vulnerabilities

Same product: Notepad2
Same vendor: Flos Freeware
Same weakness: CWE-427

V. Comments for CVE-2026-2538

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