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CVE-2026-3008— Vulnerability in Notepad++

Quick assessment

Affected
Notepad++ Notepad++
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.

Notepad++是中国台湾侯今吾（Don Ho）个人开发者的一款开源的纯文本编辑器。 Notepad++存在格式化字符串错误漏洞，该漏洞源于字符串注入问题，可能导致攻击者获取内存地址信息或使应用程序崩溃。

CVSS 6.6 · Medium EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2026-3008

Vulnerability Information
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Vulnerability Title
Vulnerability in Notepad++
Source: CVE Program / CVE List V5
Vulnerability Description
Successful exploitation of the string injection vulnerability could allow an attacker to obtain memory address information or crash the application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Notepad++ 格式化字符串错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Notepad++是中国台湾侯今吾（Don Ho）个人开发者的一款开源的纯文本编辑器。 Notepad++存在格式化字符串错误漏洞，该漏洞源于字符串注入问题，可能导致攻击者获取内存地址信息或使应用程序崩溃。
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
Notepad++ Notepad++ 8.9.3 -

II. Public POCs for CVE-2026-3008

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III. Intelligence Information for CVE-2026-3008

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Vendor Advisories for CVE-2026-3008 (1)

Proof of Concept for CVE-2026-3008 (1)

Security Blog Posts for CVE-2026-3008 (1)

IV. Related Vulnerabilities

Same product: Notepad++
Same vendor: Notepad++

V. Comments for CVE-2026-3008

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