SEPTEMBER 19, 2026
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Case File

CVE-2026-49255

HIGH · CVSS 8.8 EPSS 0.53% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-19 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

Electerm versions prior to 3.11.11 are vulnerable to arbitrary command execution due to improper handling of untrusted file paths in critical file operations. A malicious SSH or SFTP server can exploit this flaw to execute commands with the user's privileges, potentially leading to data exfiltration, file modification, or malware installation. Organizations using Electerm for remote file transfers should prioritize upgrading to the patched version to mitigate these risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-49255
Severity
HIGH
CVSS
8.8
EPSS
0.53%
Windows

Original NVD 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.