CVE-2026-43944

CRITICALNVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.6 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 72% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.6Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
9.6
EG Score
9.6(medium)
EPSS
28.4%
KEV
Not listed

Published

May 8, 2026

Last Modified

May 13, 2026

Advisory Details (4)

Auto-updated May 8, 2026
Patch available. Sources: github.
github Patch Available

Arbitrary local code execution via deep links/CLI in electerm · Advisory · electerm/electerm · GitHub

Affected: version > 3.8.8

https://github.com/electerm/electerm/security/advisories/GHSA-mpm8-cx2p-626q
generic

Release v3.8.15 · electerm/electerm · GitHub

https://github.com/electerm/electerm/releases/tag/v3.8.15
generic

Security: Do not allow exec path with ".." · electerm/electerm@a79e06f · GitHub

https://github.com/electerm/electerm/commit/a79e06f4a1f0ac6376c3d2411ef4690fa0377742
generic

Security: Deep link support prop check · electerm/electerm@8a6a179 · GitHub

https://github.com/electerm/electerm/commit/8a6a17951e96d715f5a231532bbd8303fe208700

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
electerm—3.8.8—

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 50× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 152 total refreshes for this CVE.

  1. 2026-07-11 08:27 UTCEPSS rescore
  2. 2026-07-09 19:10 UTCEPSS rescore
  3. 2026-07-08 15:16 UTCEPSS rescore
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  1. 2026-06-21 14:56 UTCEPSS rescore
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  10. 2026-06-15 06:33 UTCEG score recompute
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  22. 2026-06-12 20:58 UTCEG score recompute
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  40. 2026-06-10 09:54 UTCEG score recompute
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  50. 2026-06-08 14:17 UTCEPSS rescore
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  52. 2026-06-08 11:38 UTCEG score recompute
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  60. 2026-06-07 13:32 UTCEG score recompute
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  63. 2026-06-07 02:27 UTCEG score recompute
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  67. 2026-06-06 13:47 UTCEPSS rescore
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  69. 2026-06-06 11:40 UTCEG score recompute
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  73. 2026-06-05 22:47 UTCEPSS rescore
  74. 2026-06-05 20:52 UTCEG score recompute
  75. 2026-06-05 17:10 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-43944?
CVE-2026-43944 is a critical vulnerability published on May 8, 2026. 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…
When was CVE-2026-43944 disclosed?
CVE-2026-43944 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43944 actively exploited?
CVE-2026-43944 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43944?
CVE-2026-43944 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2026-43944?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43944, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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