Electerm check folder size function may get attacked by unsafe folder name
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.15.120, electerm allows a malicious FTP or SFTP server to execute arbitrary commands when a user downloads a crafted folder and invokes Properties and Calculate Size because calcLocal in src/client/components/sftp/file-info-modal.jsx inserts the server-controlled folder name into a du -sh shell command without safely escaping single quotes. This issue is fixed in version 3.15.120.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA electerm (electerm) Fixed in 3.15.120
Timeline
- 2026-10-02 Threatist record created from CVE-2026-73224
References
More electerm vulnerabilities
- TI-2020-14501 An issue was discovered in Electerm 1.3.22, allows attackers to execute arbitrary code… CVSS 3.1CRITICAL 9.8
- TI-2026-36449 electerm: Path Traversal in Zmodem and Trzsz Download Filename Handling CVSS 3.1HIGH 7.1
- TI-2026-30086 electerm has Command Injection Vulnerability via runMac function CVSS 3.1CRITICAL 9.8
- TI-2026-30087 electerm has Command Injection Vulnerability via runLinux function CVSS 3.1CRITICAL 9.8
- TI-2026-31998 Unvalidated shell.openExternal in electerm allows arbitrary protocol execution via terminal link click CVSS 3.1CRITICAL 9.6
- TI-2026-32907 electerm: Import unsafe bookmark data could lead to unsafe operation when click local type bookmark CVSS 4.0CRITICAL 9.4
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences