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electerm CVE-2026-43944

| EUVD-2026-28516 CRITICAL
Improper Input Validation (CWE-20)
2026-05-08 GitHub_M GHSA-mpm8-cx2p-626q
9.4
CVSS 4.0
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CVSS VectorNVD

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:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Scope
X

Lifecycle Timeline

5
Patch available
May 08, 2026 - 05:31 EUVD
Source Code Evidence Fetched
May 08, 2026 - 04:32 vuln.today
Analysis Generated
May 08, 2026 - 04:32 vuln.today
CVSS changed
May 08, 2026 - 04:22 NVD
9.4 (CRITICAL)
CVE Published
May 08, 2026 - 03:08 nvd
CRITICAL 9.4

DescriptionNVD

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.

AnalysisAI

Arbitrary local code execution in electerm (versions 3.0.6-3.8.14) allows remote attackers to execute malicious code on victim systems by tricking users into clicking crafted electerm:// deep links, opening malicious shortcuts, or running CLI commands with attacker-controlled --opts parameters. The vulnerability stems from insufficient input validation (CWE-20) on deep link and CLI arguments, enabling adversaries to inject arbitrary options that execute code with the privileges of the electerm process. …

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RemediationAI

Within 24 hours: Inventory all systems running electerm versions 3.0.6-3.8.14 and restrict user access to externally-sourced electerm:// links and shortcuts. Within 7 days: Upgrade all affected electerm installations to version 3.8.15 or later. …

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CVE-2026-43944 vulnerability details – vuln.today

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