Is CVE-2026-73223 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-73223?

CVE-2026-73223 has a CVSS v3 severity of HIGH (8.1).

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CVE-2026-73223

Description

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.15.120, electerm allows a malicious SFTP server to write attacker-controlled content outside the temporary directory because the server-controlled filename name used by editWithSystemEditor in src/client/components/sftp/file-item.jsx is interpolated into path.resolve without sanitization. This issue is fixed in version 3.15.120.