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CVE-2026-49255— electerm: Command Injection in File System Operations (rmrf, mv, cp)

Quick assessment

Affected
electerm electerm
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

electerm是electerm组织的一款终端仿真程序。 electerm 3.11.11之前版本存在命令注入漏洞，该漏洞源于在src/app/lib/fs.js中构造操作系统命令时将不受信任的文件路径插入rmrf()、mv()和cp()函数，恶意SSH或SFTP服务器可提供包含引号和shell元字符的文件名，可能导致任意命令执行，造成数据泄露、文件修改、恶意软件安装或拒绝服务。

CVSS 8.8 · High EPSS 0.53% · P42

Affected Version Matrix 1

VendorProduct Version RangeStatus
electerm electerm < 3.11.11 affected
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I. Basic Information for CVE-2026-49255

Vulnerability Information
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Vulnerability Title
electerm: Command Injection in File System Operations (rmrf, mv, cp)
Source: CVE Program / CVE List V5
Vulnerability Description
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.11.11, electerm constructs operating system commands in src/app/lib/fs.js by interpolating untrusted file paths into the rmrf(), mv(), and cp() functions. A malicious SSH or SFTP server can provide a filename containing quote characters and shell metacharacters, and a victim can cause that filename to reach the affected operation during remote-to-local transfer, conflict renaming, copying, moving, or removal. The generated `rm -rf`, mv, `cp -r`, PowerShell Remove-Item, Move-Item, or Copy-Item command can then interpret the filename as shell syntax. This allows arbitrary command execution with the electerm desktop user's privileges on POSIX and Windows systems, enabling data exfiltration, file modification, malware installation, or denial of service. This issue is fixed in version 3.11.11.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Vulnerability Title
electerm 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
electerm是electerm组织的一款终端仿真程序。 electerm 3.11.11之前版本存在命令注入漏洞，该漏洞源于在src/app/lib/fs.js中构造操作系统命令时将不受信任的文件路径插入rmrf()、mv()和cp()函数，恶意SSH或SFTP服务器可提供包含引号和shell元字符的文件名，可能导致任意命令执行，造成数据泄露、文件修改、恶意软件安装或拒绝服务。
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
electerm electerm < 3.11.11 -

II. Public POCs for CVE-2026-49255

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8961 chars
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POC zip download
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III. Intelligence Information for CVE-2026-49255

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Patches & Fixes for CVE-2026-49255 (1)

Vendor Advisories for CVE-2026-49255 (1)

Vendor Pages for CVE-2026-49255 (1)

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-49255

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