CVE-2026-73227

HIGHPre-NVD 8.18.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This high-severity CVE scores 8.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (40th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
8.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.1Exploit: 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. Prior to 3.15.120, electerm allows a malicious RDP server to write attacker-controlled content outside the selected save directory because the RDP clipboard download path in src/client/components/rdp/file-transfer.js passes the server-controlled CLIPRDR filename fileInfo.name to osResolve without sanitization. This issue is fixed in version 3.15.120.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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 (value × EchelonGraph’s weight)
Severity81% × 45%
The EG Score, 8.1 of 10.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
40th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 11, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Aug 11, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub release Patch Available

v3.15.120

Patch available: electerm/electerm v3.15.120

https://github.com/electerm/electerm/releases/tag/v3.15.120
GitHub commit

commit 451bf3000672 (electerm/electerm)

Fix landed in electerm/electerm commit 451bf3000672 — awaiting tagged release

https://github.com/electerm/electerm/commit/451bf3000672c00b0c3b148fbf3c148c205ce350
GitHub advisoryMentions a patch (unverified)

electerm's RDP clipboard file download may parse unsafe file name · Advisory · electerm/electerm · GitHub

https://github.com/electerm/electerm/security/advisories/GHSA-gm6q-5vpx-3mwf

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 46× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 96 of 108 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 12 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-10-13 07:58 UTCEG score recompute
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
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  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
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  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 40th percentile
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  22. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 40th percentile
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  24. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  1. 2026-09-28 14:54 UTCEG score recompute
  2. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  3. 2026-09-28 02:04 UTCEG score recompute
  4. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  5. 2026-09-27 10:00 UTCEG score recompute
  6. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  10. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 24th percentile
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  15. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  16. 2026-09-18 02:36 UTCEG score recompute
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  18. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
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  20. 2026-09-15 13:20 UTCEG score recompute
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  22. 2026-09-13 17:10 UTCEG score recompute
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  24. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
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  26. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  27. 2026-09-11 13:55 UTCEG score recompute
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  29. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
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  34. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  35. 2026-09-06 03:14 UTCEG score recompute
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  38. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
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  44. 2026-08-30 23:27 UTCEG score recompute
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  51. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
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  53. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
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  56. 2026-08-24 20:37 UTCEG score recompute
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  58. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  59. 2026-08-22 04:35 UTCEG score recompute
  60. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
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  70. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  71. 2026-08-16 07:29 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-73227?
CVE-2026-73227 is a high-severity vulnerability; its CVE record was published on August 11, 2026. electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.15.120, electerm allows a malicious RDP server to write attacker-controlled content outside the selected save directory because the RDP clipboard download path in…
When was the CVE record for CVE-2026-73227 published?
The CVE record for CVE-2026-73227 was published on August 11, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 9, 2026; the record at its source may have been updated since.
Is CVE-2026-73227 actively exploited?
CVE-2026-73227 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73227?
CVE-2026-73227 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73227?
A fix for CVE-2026-73227 is available: update to the fixed version the vendor names in its advisory.

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