---
title: "CVE-2026-43944: Electerm users can run dangrous code through link or command line"
url: https://erroneo.us/security/cve/CVE-2026-43944/
description: "CVE-2026-43944 (electerm (npm)): electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. From versions 3.0.6 to before…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-05-08
date_modified: 2026-05-13
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-43944"
kev: false
cvss: 9.4
epss: 0.00645
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-43944: Electerm users can run dangrous code through link or command line

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.6% , percentile 50: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 50% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Only applies if your dependency tree includes electerm (npm) >= 3.0.6, < 3.8.8, fixed in 3.8.8 . Check your lockfile, including transitive dependencies.

## What it is

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. From versions 3.0.6 to before 3.8.15, electerm is vulnerable to arbitrary local code execution via deep links, CLI --opts, or crafted shortcuts. Exploit requires clicking a crafted electerm://... link or opening a crafted shortcut/command that launches electerm with attacker-controlled opts. This issue has been patched in version 3.8.15.

## Affected packages

- npm `electerm` >= 3.0.6, < 3.8.8 → fixed: 3.8.8

## Affected products (CVE record)

- electerm electerm: >= 3.0.6, < 3.8.15

## Severity

- GitHub_M CVSS 4.0: 9.4 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`
- GitHub CVSS 4.0: 9.4 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.65% probability of exploitation activity in the next 30 days; percentile 50.

## Sources

- [GitHub Advisory GHSA-mpm8-cx2p-626q](https://github.com/advisories/GHSA-mpm8-cx2p-626q)
- [CVE.org record CVE-2026-43944](https://www.cve.org/CVERecord?id=CVE-2026-43944)
- [NVD entry CVE-2026-43944](https://nvd.nist.gov/vuln/detail/CVE-2026-43944)
- [github.com](https://github.com/electerm/electerm/security/advisories/GHSA-mpm8-cx2p-626q)
- [github.com](https://github.com/electerm/electerm/commit/0599e67069b00e376a2e962649aaad6096e63507)
- [github.com](https://github.com/electerm/electerm/commit/8a6a17951e96d715f5a231532bbd8303fe208700)
- [github.com](https://github.com/electerm/electerm/commit/a79e06f4a1f0ac6376c3d2411ef4690fa0377742)
- [github.com](https://github.com/electerm/electerm/releases/tag/v3.8.15)

---
Source page: https://erroneo.us/security/cve/CVE-2026-43944/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt