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 70% 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
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
9.6CRITICALmedium confidence
EG Risk
43
EG Risk 43/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity96% × 45%
Exploitation0% × 40%
Automatability0% × 15%
EPSS PROB
0.6%
EPSS %ILE
49th
KEV
Not listed

Published

May 8, 2026

Last Modified

May 13, 2026

Advisory Details (5)

Auto-updated Oct 2, 2026
Patch available. Sources: github_release, github, github_commit.
githubMentions a patch (unverified)

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
github_release Patch Available

v3.8.15

Patch available: electerm/electerm v3.8.15

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

commit a79e06f4a1f0 (electerm/electerm)

Fix landed in electerm/electerm commit a79e06f4a1f0 — awaiting tagged release

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

commit 8a6a17951e96 (electerm/electerm)

Fix landed in electerm/electerm commit 8a6a17951e96 — awaiting tagged release

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

commit 0599e67069b0 (electerm/electerm)

Fix landed in electerm/electerm commit 0599e67069b0 — awaiting tagged release

https://github.com/electerm/electerm/commit/0599e67069b00e376a2e962649aaad6096e63507

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
electerm—
  • 3.0.6 up to 3.8.8: fixed in 3.8.8
—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 23× 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 161 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
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  9. 2026-09-30 15:03 UTCEPSS rescore
  10. 2026-09-30 08:28 UTCOSV refresh
  11. 2026-09-27 13:48 UTCEPSS rescore
  12. 2026-09-26 15:58 UTCEPSS rescore
  13. 2026-09-23 17:53 UTCEPSS rescore
  14. 2026-09-20 20:15 UTCEPSS rescore
  15. 2026-09-18 19:28 UTCEPSS rescore
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  19. 2026-09-13 16:47 UTCEPSS rescore
  20. 2026-09-12 15:01 UTCEPSS rescore
  21. 2026-09-11 15:10 UTCOSV refresh
  22. 2026-09-11 14:53 UTCEPSS rescore
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  24. 2026-09-10 09:34 UTCEPSS rescore
  25. 2026-09-08 22:00 UTCEPSS rescore
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  1. 2026-09-07 16:01 UTCEPSS rescore
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  3. 2026-09-04 05:06 UTCEPSS rescore
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  5. 2026-09-01 13:54 UTCEPSS rescore
  6. 2026-08-30 19:17 UTCEPSS rescore
  7. 2026-08-30 01:22 UTCEPSS rescore
  8. 2026-08-28 21:41 UTCEPSS rescore
  9. 2026-08-27 14:25 UTCEPSS rescore
  10. 2026-08-26 14:46 UTCEPSS rescore
  11. 2026-08-25 13:49 UTCEPSS rescore
  12. 2026-08-23 19:30 UTCEG score recompute
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-21 23:49 UTCEPSS rescore
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  17. 2026-08-18 13:48 UTCEPSS rescore
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  19. 2026-08-17 11:59 UTCEG score recompute
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 04:40 UTCEG score recompute
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 01:30 UTCEPSS rescore
  24. 2026-08-14 03:16 UTCEG score recompute
  25. 2026-08-13 22:00 UTCEPSS rescore
  26. 2026-08-12 16:51 UTCEG score recompute
  27. 2026-08-12 13:51 UTCEPSS rescore
  28. 2026-08-11 15:54 UTCEG score recompute
  29. 2026-08-11 13:43 UTCEPSS rescore
  30. 2026-08-11 01:21 UTCEG score recompute
  31. 2026-08-11 00:00 UTCEPSS rescore
  32. 2026-08-09 14:11 UTCEG score recompute
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  34. 2026-08-09 02:27 UTCEG score recompute
  35. 2026-08-08 16:37 UTCEPSS rescore
  36. 2026-08-07 19:57 UTCEG score recompute
  37. 2026-08-06 16:52 UTCEG score recompute
  38. 2026-08-06 13:46 UTCEPSS rescore
  39. 2026-08-05 22:12 UTCEG score recompute
  40. 2026-08-05 19:17 UTCEPSS rescore
  41. 2026-08-04 15:10 UTCEPSS rescore
  42. 2026-08-04 10:38 UTCEPSS rescore
  43. 2026-08-03 19:34 UTCEG score recompute
  44. 2026-08-03 10:36 UTCEPSS rescore
  45. 2026-08-02 03:39 UTCEG score recompute
  46. 2026-08-02 02:27 UTCEPSS rescore
  47. 2026-08-01 04:16 UTCEPSS rescore
  48. 2026-07-30 16:28 UTCEPSS rescore
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  50. 2026-07-28 15:36 UTCEPSS rescore
  51. 2026-07-27 14:13 UTCEPSS rescore
  52. 2026-07-26 14:54 UTCEPSS rescore
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  54. 2026-07-25 14:18 UTCEPSS rescore
  55. 2026-07-24 14:17 UTCEPSS rescore
  56. 2026-07-23 14:18 UTCEPSS rescore
  57. 2026-07-23 03:14 UTCEG score recompute
  58. 2026-07-22 14:08 UTCEPSS rescore
  59. 2026-07-21 15:24 UTCEPSS rescore
  60. 2026-07-20 17:08 UTCEPSS rescore
  61. 2026-07-19 14:31 UTCEPSS rescore
  62. 2026-07-19 02:29 UTCEPSS rescore
  63. 2026-07-18 10:04 UTCEPSS rescore
  64. 2026-07-16 17:03 UTCEPSS rescore
  65. 2026-07-16 09:53 UTCOSV refresh
  66. 2026-07-15 16:57 UTCEPSS rescore
  67. 2026-07-15 02:00 UTCEPSS rescore
  68. 2026-07-13 22:30 UTCEPSS rescore
  69. 2026-07-13 06:13 UTCEPSS rescore
  70. 2026-07-12 05:46 UTCEPSS rescore
  71. 2026-07-11 08:27 UTCEPSS rescore
  72. 2026-07-09 19:10 UTCEPSS rescore
  73. 2026-07-08 15:16 UTCEPSS rescore
  74. 2026-07-07 13:46 UTCEPSS rescore
  75. 2026-07-06 16:27 UTCEPSS rescore

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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 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 0.6% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
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?
A fix for CVE-2026-43944 is available: update to the fixed version the vendor names in its advisory.

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