TI-2026-32000 Aliases CVE-2026-43943 GHSA-q4p8-8j9m-8hxj

electerm: RCE via malicious SSH server filename in openFileWithEditor

LOW 35CWE-78Published 2026-05-08 · Updated 2026-05-08

Key facts

Attack vector: Local
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 and GitHub. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00165 5th percentileScored 2026-11-07

Fix Fixed electerm (electerm): 3.7.9electerm (npm): 3.7.9

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

Vendor	Product	Affected versions	Fixed in	Status	Source
electerm	electerm	before 3.7.9	3.7.9	Patch available	CNA
—	electerm (npm)	before 3.7.9	3.7.9	Patch available	GHSA-q4p8-8j9m-8hxj

electerm Vendorelecterm Affected before 3.7.9 Fixed in 3.7.9 Patch available CNA
electerm (npm) Vendor— Affected before 3.7.9 Fixed in 3.7.9 Patch available GHSA-q4p8-8j9m-8hxj

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:electerm_project:electerm::::::::	before 3.7.9	Vulnerable	electerm

cpe:2.3:a:electerm_project:electerm:*:*:*:*:*:*:*:* Versions before 3.7.9 Vulnerable ·electerm

Remediation

Fix · CNA electerm (electerm) Fixed in 3.7.9
Fix · GHSA-q4p8-8j9m-8hxj electerm (npm) Fixed in 3.7.9 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-43943
2026-10-03 Alias added: GHSA-q4p8-8j9m-8hxj

References

Patch 2

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-43943

Other 2

TI-2020-14501 An issue was discovered in Electerm 1.3.22, allows attackers to execute arbitrary code… CVSS 3.1CRITICAL 9.8
TI-2026-30086 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-2026-32001 electerm: dangerous code can be run through links or command line CVSS 4.0CRITICAL 9.4
TI-2026-33147 electerm: Local code through electerm's single-instance socket CVSS 4.0CRITICAL 9.3

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences