CVE-2026-94138

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreHIGH confidence

Score 6.6 from GitHub Security Advisory (severity: LOW) published 2026-09-21. the CNA's CVSS baseline 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vuldb, ghsa
Trending — 4 sources updated this weekElevated
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 6.6Exploit: Elevated riskExposed: 0

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

A security flaw has been discovered in Chengdu Feiyuxing Technology Feiyu Star Router B-MB5E202-210322-r11656. This impacts an unknown function of the file /send_order.cgi?parameter=del_expmac. The manipulation of the argument mac results in command injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
6.6
EG Score
6.6(high)
EG Risk
30(Track)
EG Risk 30/100SSVC: Track

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
Severity66% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
—
EPSS %ILE
—
KEV
Not listed

Published

September 21, 2026

Last Modified

September 21, 2026

References (5)

Vendor Advisories for CVE-2026-94138(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 9× 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.

  1. 2026-09-21 16:05 UTCEG score recompute
  2. 2026-09-21 16:05 UTCGHSA enrichment
  3. 2026-09-21 16:05 UTCMITRE cvelistV5CVSS v4 → 5.1
  4. 2026-09-21 13:39 UTCEG score recompute
  5. 2026-09-21 13:39 UTCGHSA enrichment
  6. 2026-09-21 04:21 UTCEG score recompute
  7. 2026-09-21 04:20 UTCNVD updateCVSS v4 → 2
  8. 2026-09-21 03:40 UTCEG score recompute
  9. 2026-09-21 03:40 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2026-94138?
CVE-2026-94138 is a medium vulnerability published on September 21, 2026. A security flaw has been discovered in Chengdu Feiyuxing Technology Feiyu Star Router B-MB5E202-210322-r11656. This impacts an unknown function of the file /sendorder.cgi?parameter=delexpmac. The manipulation of the argument mac results in command injection. The attack may be launched remotely. The…
When was CVE-2026-94138 disclosed?
CVE-2026-94138 was first published in the National Vulnerability Database on September 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-94138?
CVE-2026-94138 has a CVSS v4.0 base score of 6.6 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-94138?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-94138, 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

Explore the affected products and dependency analysis for CVE-2026-94138

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