CVE-2026-70009

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreHIGH confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-18. the CNA's CVSS baseline 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.3Exploit: None knownExposed: 0

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

Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Arc allows an unauthorized attacker to elevate privileges over a network.

CVSS v3
9.3
EG Score
9.3(high)
EG Risk
57(Track)
EG Risk 57/100SSVC: 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
Severity93% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
53%
KEV
Not listed

Published

September 17, 2026

Last Modified

September 24, 2026

Advisory Details (1)

Auto-updated Sep 23, 2026
Patch available. Sources: microsoft.
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70009

Vendor Advisories for CVE-2026-70009(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.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 111× in last 7d / 121× 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 121 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-70009?
CVE-2026-70009 is a critical vulnerability published on September 17, 2026. Improper limitation of a pathname to a restricted directory ('path traversal') in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
When was CVE-2026-70009 disclosed?
CVE-2026-70009 was first published in the National Vulnerability Database on September 17, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70009 actively exploited?
CVE-2026-70009 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 47.5% of all scored CVEs.
What is the CVSS score of CVE-2026-70009?
CVE-2026-70009 has a CVSS v4.0 base score of 9.3 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-70009?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70009, 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-2026-70009

Explore →

Is Your Infrastructure Affected by CVE-2026-70009?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs