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CVE-2026-77605— Notepad++ “Run by system” executes *.txt.cmd when user selected *.txt (target confusion → command execution)

一分钟漏洞结论

影响对象
notepad-plus-plus notepad-plus-plus
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Notepad++ is a free and open-source source code editor. Prior to 8.9.8, the Folder as Workspace Run by system action in Notepad++ can resolve a different sibling file than the file selected by the user. When an attacker places a command script whose name is th

CVSS 7.8 · High
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一、 漏洞 CVE-2026-77605 基础信息

漏洞信息

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Vulnerability Title
Notepad++ “Run by system” executes *.txt.cmd when user selected *.txt (target confusion → command execution)
来源: CVE Program / CVE List V5
Vulnerability Description
Notepad++ is a free and open-source source code editor. Prior to 8.9.8, the Folder as Workspace Run by system action in Notepad++ can resolve a different sibling file than the file selected by the user. When an attacker places a command script whose name is the selected text-file path with .cmd appended, and the user invokes Run by system on the text file on Windows 10 or Windows 11, Notepad++ can execute the sibling script as the current user instead of opening the selected file. This issue is fixed in version 8.9.8.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
notepad-plus-plus notepad-plus-plus < 8.9.8 -

二、漏洞 CVE-2026-77605 的公开POC

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三、漏洞 CVE-2026-77605 的情报信息

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CVE-2026-77605 其他参考 (4)

同批安全公告 · notepad-plus-plus · 2026-09-22 · 共 6 条

CVE-2026-85279 8.6 HIGH Notepad++: Stack Buffer Overflow in Plugin Lexer Loading via Unchecked GetLexerCount() Ret
CVE-2026-86054 7.8 HIGH Notepad++: Stack Buffer Overflow in `NppParameters::writeSession` via overlong session pat
CVE-2026-85995 7.3 HIGH Notepad++: Authenticode verification bypass allows modified updater execution
CVE-2026-85288 6.7 MEDIUM Notepad++: Shortcuts.xml macro HMAC bypass still reachable via the "Run a Macro Multiple T
CVE-2026-86056 5.5 MEDIUM Notepad++: Null pointer dereference in NPPM_SAVESESSION message handler causes crash (DoS)

IV. Related Vulnerabilities

Same product: notepad-plus-plus
Same vendor: notepad-plus-plus
Same weakness: CWE-20

V. Comments for CVE-2026-77605

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