CVE-2023-40164— Notepad++ global buffer read overflow in nsCodingStateMachine::NextState
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2023-40164
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Notepad++ global buffer read overflow in nsCodingStateMachine::NextState
Source: NVD (National Vulnerability Database)
Vulnerability Description
Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to global buffer read overflow in `nsCodingStateMachine::NextStater`. The exploitability of this issue is not clear. Potentially, it may be used to leak internal memory allocation information. As of time of publication, no known patches are available in existing versions of Notepad++.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Notepad++ 安全漏洞
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++ 存在安全漏洞，该漏洞源于在nsCodingStateMachine::NextStater函数中存在全局缓冲区读取溢出漏洞。
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-plus-plus | notepad-plus-plus | <= 8.5.6 | - |
II. Public POCs for CVE-2023-40164
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2023-40164
请登录查看更多情报信息。
- https://securitylab.github.com/advisories/GHSL-2023-092_Notepad__/x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2023-40164
Same Patch Batch · notepad-plus-plus · 2023-08-25 · 4 CVEs total
| CVE-2023-40031 | 7.8 HIGH | Notepad++ vulnerable to heap buffer write overflow in Utf8_16_Read::convert |
| CVE-2023-40166 | 5.5 MEDIUM | Notepad++ heap buffer read overflow in FileManager::detectLanguageFromTextBegining |
| CVE-2023-40036 | 5.5 MEDIUM | Notepad++ global buffer read overflow in CharDistributionAnalysis::HandleOneChar |
IV. Related Vulnerabilities
Same product: notepad-plus-plus
- CVE-2026-25926
Notepad++ has an Untrusted Search Path - CVE-2025-15556
Notepad++ < 8.8.9 WinGUp Updater Lacks Update Integrity Veri - CVE-2025-49144
Notepad++ Privilege Escalation in Installer via Uncontrolled - CVE-2023-40166
Notepad++ heap buffer read overflow in FileManager::detectLa - CVE-2023-40036
Notepad++ global buffer read overflow in CharDistributionAna
Same vendor: notepad-plus-plus
- CVE-2026-25926
Notepad++ has an Untrusted Search Path - CVE-2025-15556
Notepad++ < 8.8.9 WinGUp Updater Lacks Update Integrity Veri - CVE-2025-49144
Notepad++ Privilege Escalation in Installer via Uncontrolled - CVE-2023-40166
Notepad++ heap buffer read overflow in FileManager::detectLa - CVE-2023-40036
Notepad++ global buffer read overflow in CharDistributionAna
Same weakness: CWE-120
- CVE-2026-8260
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings - CVE-2026-8137
Totolink X5000R formDdns sub_458E40 buffer overflow - CVE-2026-6691
MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow - CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow - CVE-2026-7856
D-Link DI-8100 Web Management url_member.asp buffer overflow
V. Comments for CVE-2023-40164
No comments yet