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CVE-2026-43943— electerm: RCE via malicious SSH server filename in openFileWithEditor

CVSS 7.8 · High EPSS 0.03% · P9
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I. Basic Information for CVE-2026-43943

Vulnerability Information
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Vulnerability Title
electerm: RCE via malicious SSH server filename in openFileWithEditor
Source: NVD (National Vulnerability Database)
Vulnerability Description
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to version 3.7.9, a code execution (RCE) vulnerability exists in electerm's SFTP open with system editor or "Edit with custom editor" feature. When a user opts to edit a file using open with system editor or open with a custom editor, the filename is passed directly into a command line without sanitization. A malicious actor controlling the SSH server or user OS can exploit this by crafting a filename containing shell metacharacters. If a victim subsequently attempts to edit this file, the injected commands are executed on their machine with the user's privileges. This could allow the attacker to run arbitrary code, install malware, or move laterally within the network. This issue has been patched in version 3.7.9.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Electerm 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Electerm是中国zxdong262个人开发者的一款基于 electron 开发的 SSH/SFTP 客户端。 electerm 3.7.9之前版本存在操作系统命令注入漏洞，该漏洞源于SFTP编辑功能中文件名未进行清理，可能导致攻击者通过包含shell元字符的文件名实现远程代码执行。
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

VendorProductAffected VersionsCPESubscribe
electermelecterm < 3.7.9 -

II. Public POCs for CVE-2026-43943

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III. Intelligence Information for CVE-2026-43943

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Same Patch Batch · electerm · 2026-05-08 · 7 CVEs total

CVE-2026-415019.8 CRITICALelecterm has Command Injection Vulnerability via runLinux function
CVE-2026-415009.8 CRITICALelecterm has Command Injection Vulnerability via runMac function
CVE-2026-439419.6 CRITICALUnvalidated shell.openExternal in electerm allows arbitrary protocol execution via termina
CVE-2026-439408.4 HIGHelecterm: Path traversal in electerm runWidget leads to arbitrary code execution
CVE-2026-439425.5 MEDIUMelecterm: Full process.env exposed to renderer via window.pre.env in electerm
CVE-2026-43944electerm: dangerous code can be run through links or command line

IV. Related Vulnerabilities

Same product: electerm
Same vendor: electerm
Same weakness: CWE-78

V. Comments for CVE-2026-43943

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