CVE-2026-71993

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-09. The CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.5%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

MSI Radix AXE6600 router firmware version v781521 contains a command injection vulnerability in the openvpn function that allows remote attackers to execute arbitrary commands on the affected device. Attackers can exploit the macfilter function to inject malicious commands and obtain root privileges on the underlying system.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
60
EG Risk 60/100

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)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation2.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
2.5%
EPSS %ILE
84th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 9, 2026

Last Modified

September 24, 2026

Advisory Details (1)

Auto-updated Oct 8, 2026
Fix referenced — no release confirmed yet.
Web page

MSI Radix AXE6600 v781521 Command Injection via openvpn function | Advisories | VulnCheck

https://www.vulncheck.com/advisories/msi-radix-axe6600-v781521-command-injection-via-openvpn-function

Vendor Advisories for CVE-2026-71993(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 128× 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 100 of 358 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. None are among the latest 100 rows. The 258 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 19:28 UTCEG score recompute
  2. 2026-10-11 16:43 UTCEG score recompute
  3. 2026-10-11 14:03 UTCEG score recompute
  4. 2026-10-11 13:49 UTCEPSS rescoreEPSS 2.5% · 84th percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 2.5% · 84th percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 2.5% · 84th percentile
  7. 2026-10-08 17:13 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  9. 2026-10-07 03:51 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-10-06 23:14 UTCEG score recompute
  11. 2026-10-06 23:14 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  13. 2026-10-05 18:31 UTCEG score recompute
  14. 2026-10-05 18:31 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  16. 2026-10-05 08:05 UTCEG score recompute
  17. 2026-10-05 08:05 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-04 23:22 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  19. 2026-10-04 22:56 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-04 14:43 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-04 10:16 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-10-04 05:40 UTCEG score recompute
  23. 2026-10-04 05:40 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-10-03 14:26 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  25. 2026-10-03 00:58 UTCEG score recompute
Show 75 more
  1. 2026-10-03 00:58 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  2. 2026-10-02 16:20 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-02 09:28 UTCEG score recompute
  4. 2026-10-02 09:28 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-10-01 19:50 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  6. 2026-10-01 15:40 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-01 11:29 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-10-01 07:15 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-01 03:03 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-09-30 22:51 UTCEG score recompute
  11. 2026-09-30 22:51 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-09-30 15:03 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  13. 2026-09-29 05:40 UTCEG score recompute
  14. 2026-09-29 05:40 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-09-28 13:52 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  16. 2026-09-28 10:51 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-09-28 06:39 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-09-28 02:26 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-09-27 17:04 UTCEG score recompute
  20. 2026-09-27 17:03 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 2.5% · 83rd percentile
  23. 2026-09-25 12:50 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-09-25 08:37 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  25. 2026-09-25 04:10 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  26. 2026-09-24 15:00 UTCEG score recompute
  27. 2026-09-24 15:00 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  28. 2026-09-24 09:52 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  29. 2026-09-24 05:40 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  30. 2026-09-24 01:28 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  31. 2026-09-23 21:15 UTCEG score recompute
  32. 2026-09-23 21:15 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  33. 2026-09-23 17:54 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  34. 2026-09-23 14:07 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  35. 2026-09-23 09:55 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  36. 2026-09-23 05:43 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  37. 2026-09-23 01:31 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  38. 2026-09-22 21:18 UTCEG score recompute
  39. 2026-09-22 21:18 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  40. 2026-09-22 14:52 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-09-22 10:26 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  42. 2026-09-22 04:53 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  43. 2026-09-22 00:31 UTCEG score recompute
  44. 2026-09-22 00:31 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  45. 2026-09-21 21:09 UTCEPSS rescoreEPSS 1.4% · 69th percentile
  46. 2026-09-21 11:25 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  47. 2026-09-21 03:37 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  48. 2026-09-20 20:31 UTCEG score recompute
  49. 2026-09-20 20:31 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  50. 2026-09-20 20:16 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  51. 2026-09-20 10:53 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-09-20 06:04 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  53. 2026-09-20 01:52 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  54. 2026-09-19 21:40 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  55. 2026-09-19 17:28 UTCEG score recompute
  56. 2026-09-19 17:28 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-09-19 12:48 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  58. 2026-09-19 07:19 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  59. 2026-09-19 02:51 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  60. 2026-09-18 22:15 UTCEG score recompute
  61. 2026-09-18 22:15 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  62. 2026-09-18 19:28 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  63. 2026-09-18 17:51 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  64. 2026-09-18 13:39 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  65. 2026-09-18 09:27 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  66. 2026-09-18 05:06 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  67. 2026-09-18 00:54 UTCEG score recompute
  68. 2026-09-18 00:54 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  69. 2026-09-17 15:08 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  70. 2026-09-17 09:16 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  71. 2026-09-17 05:04 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  72. 2026-09-17 00:52 UTCEG score recompute
  73. 2026-09-17 00:52 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8
  74. 2026-09-16 14:08 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  75. 2026-09-16 11:10 UTCGHSA enrichmentGHSA-fcgq-7m73-rv6c · GitHub severity CRITICAL · GitHub CVSS 9.8

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-71993?
CVE-2026-71993 is a critical-severity vulnerability; its CVE record was published on August 9, 2026. MSI Radix AXE6600 router firmware version v781521 contains a command injection vulnerability in the openvpn function that allows remote attackers to execute arbitrary commands on the affected device. Attackers can exploit the macfilter function to inject malicious commands and obtain root…
When was CVE-2026-71993 made public?
CVE-2026-71993 was made public on August 8, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on August 9, 2026. EchelonGraph's copy of the record carries a last-modified date of September 24, 2026; the record at its source may have been updated since.
Is CVE-2026-71993 actively exploited?
CVE-2026-71993 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.5% probability of exploitation in the next 30 days (84th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71993?
CVE-2026-71993 has a CVSS base score of 9.8 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-71993?
A fix for CVE-2026-71993 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-71993 are linked in the Vendor Advisories panel on this page.

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