CVE-2026-70283

HIGHPre-NVD 7.07.0—
EchelonGraph scoreHIGH confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. a secondary CVSS source baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.0Exploit: None knownExposed: 0

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

Incorrect authorization in Windows Win32K allows an authorized attacker to elevate privileges locally.

CVSS v3
7.0
EG Score
7.0(high)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity70% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 24, 2026

Advisory Details (1)

Auto-updated Sep 8, 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-2026-70283

Vendor Advisories for CVE-2026-70283(2)

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 50× in last 7d / 134× 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 134 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-70283?
CVE-2026-70283 is a high vulnerability published on September 8, 2026. Incorrect authorization in Windows Win32K allows an authorized attacker to elevate privileges locally.
When was CVE-2026-70283 disclosed?
CVE-2026-70283 was first published in the National Vulnerability Database on September 8, 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-2026-70283 actively exploited?
CVE-2026-70283 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 87.1% of all scored CVEs.
What is the CVSS score of CVE-2026-70283?
CVE-2026-70283 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2026-70283?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70283, 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

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