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Vulnerability record · CVE-2026-43944 · published 8 May 2026

CVE-2026-43944: Electerm project electerm improper input validation vulnerability

Electerm Project · Electerm

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.

9.4 CVSS 4.0 Critical EPSS 0.65% · top 51.2% CWE-20 · Improper input validationCWE-94 · Code injection
9.4CVSS 4.0 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/electerm/electerm/commit/0599e67069b00e376a2e962649aaad6096e63507
https://github.com/electerm/electerm/commit/8a6a17951e96d715f5a231532bbd8303fe208700 Patch
https://github.com/electerm/electerm/commit/a79e06f4a1f0ac6376c3d2411ef4690fa0377742 Patch
https://github.com/electerm/electerm/releases/tag/v3.8.15 Release Notes
https://github.com/electerm/electerm/security/advisories/GHSA-mpm8-cx2p-626q MitigationPatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-43944), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.