CVE-2026-45653

HIGHPre-NVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. the CNA's CVSS baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
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.

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVSS v3
7.0
EG Score
7.0(medium)
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
17%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 28, 2026

Advisory Details (1)

Auto-updated Jun 11, 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-2026-45653

Vendor Advisories for CVE-2026-45653(2)

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 24× in last 7d / 96× 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 199 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-45653?
CVE-2026-45653 is a high vulnerability published on June 9, 2026. Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
When was CVE-2026-45653 disclosed?
CVE-2026-45653 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45653 actively exploited?
CVE-2026-45653 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 83.4% of all scored CVEs.
What is the CVSS score of CVE-2026-45653?
CVE-2026-45653 has a CVSS v4.0 base score of 7.0 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-45653?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45653, 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-2026-45653

Explore →

Is Your Infrastructure Affected by CVE-2026-45653?

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

Start Free Scan →Browse All CVEs