CVE-2026-72942

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-09-08. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.5Exploit: None knownExposed: 0

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

Out-of-bounds read in Windows Spaceport.sys allows an unauthorized attacker to disclose information over a network.

CVSS v3
6.5
EG Score
6.5(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
Severity65% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
59%
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-2026-72942

Vendor Advisories for CVE-2026-72942(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 40× in last 7d / 94× 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. 2026-09-24 23:39 UTCEG score recompute
  2. 2026-09-24 23:39 UTCVendor advisory
  3. 2026-09-24 23:39 UTCGHSA enrichment
  4. 2026-09-24 22:45 UTCVendor advisory
  5. 2026-09-24 22:45 UTCGHSA enrichment
  6. 2026-09-24 20:57 UTCVendor advisory
  7. 2026-09-24 20:57 UTCGHSA enrichment
  8. 2026-09-24 17:46 UTCEG score recompute
  9. 2026-09-24 17:46 UTCVendor advisory
  10. 2026-09-24 17:46 UTCGHSA enrichment
  11. 2026-09-23 23:05 UTCVendor advisory
  12. 2026-09-23 23:04 UTCGHSA enrichment
  13. 2026-09-23 18:41 UTCEG score recompute
  14. 2026-09-23 18:41 UTCVendor advisory
  15. 2026-09-23 18:41 UTCGHSA enrichment
  16. 2026-09-23 17:54 UTCEPSS rescore
  17. 2026-09-23 17:34 UTCVendor advisory
  18. 2026-09-23 17:34 UTCGHSA enrichment
  19. 2026-09-22 18:52 UTCEG score recompute
  20. 2026-09-22 18:52 UTCVendor advisory
  21. 2026-09-22 18:52 UTCGHSA enrichment
  22. 2026-09-21 21:09 UTCEPSS rescore
  23. 2026-09-21 20:09 UTCEG score recompute
  24. 2026-09-21 20:09 UTCVendor advisory
  25. 2026-09-21 20:09 UTCGHSA enrichment
Show 69 more
  1. 2026-09-21 16:34 UTCEG score recompute
  2. 2026-09-21 16:34 UTCVendor advisory
  3. 2026-09-21 16:34 UTCGHSA enrichment
  4. 2026-09-20 20:16 UTCEPSS rescore
  5. 2026-09-20 18:23 UTCVendor advisory
  6. 2026-09-20 18:23 UTCGHSA enrichment
  7. 2026-09-19 19:40 UTCEG score recompute
  8. 2026-09-19 19:40 UTCVendor advisory
  9. 2026-09-19 19:40 UTCGHSA enrichment
  10. 2026-09-18 20:58 UTCEG score recompute
  11. 2026-09-18 20:58 UTCVendor advisory
  12. 2026-09-18 20:58 UTCGHSA enrichment
  13. 2026-09-18 19:28 UTCEPSS rescore
  14. 2026-09-18 14:07 UTCVendor advisory
  15. 2026-09-18 14:07 UTCGHSA enrichment
  16. 2026-09-17 23:29 UTCVendor advisory
  17. 2026-09-17 23:29 UTCGHSA enrichment
  18. 2026-09-17 20:08 UTCEG score recompute
  19. 2026-09-17 20:08 UTCVendor advisory
  20. 2026-09-17 20:08 UTCGHSA enrichment
  21. 2026-09-16 21:40 UTCEG score recompute
  22. 2026-09-16 21:40 UTCVendor advisory
  23. 2026-09-16 21:40 UTCGHSA enrichment
  24. 2026-09-16 14:08 UTCEPSS rescore
  25. 2026-09-16 05:15 UTCEPSS rescore
  26. 2026-09-15 22:57 UTCVendor advisory
  27. 2026-09-15 22:57 UTCGHSA enrichment
  28. 2026-09-15 17:41 UTCEG score recompute
  29. 2026-09-15 17:41 UTCVendor advisory
  30. 2026-09-15 17:40 UTCGHSA enrichment
  31. 2026-09-15 03:12 UTCEPSS rescore
  32. 2026-09-14 23:08 UTCVendor advisory
  33. 2026-09-14 23:08 UTCGHSA enrichment
  34. 2026-09-14 17:39 UTCVendor advisory
  35. 2026-09-14 17:39 UTCGHSA enrichment
  36. 2026-09-13 20:08 UTCEG score recompute
  37. 2026-09-13 20:08 UTCVendor advisory
  38. 2026-09-13 20:08 UTCGHSA enrichment
  39. 2026-09-12 21:25 UTCEG score recompute
  40. 2026-09-12 21:25 UTCVendor advisory
  41. 2026-09-12 21:25 UTCGHSA enrichment
  42. 2026-09-12 15:02 UTCEPSS rescore
  43. 2026-09-11 22:42 UTCVendor advisory
  44. 2026-09-11 22:42 UTCGHSA enrichment
  45. 2026-09-11 20:00 UTCVendor advisory
  46. 2026-09-11 20:00 UTCGHSA enrichment
  47. 2026-09-11 17:01 UTCEG score recompute
  48. 2026-09-11 17:01 UTCVendor advisory
  49. 2026-09-11 17:01 UTCGHSA enrichment
  50. 2026-09-11 14:53 UTCEPSS rescore
  51. 2026-09-10 20:37 UTCEG score recompute
  52. 2026-09-10 20:37 UTCGHSA enrichment
  53. 2026-09-10 09:35 UTCEPSS rescore
  54. 2026-09-09 21:54 UTCGHSA enrichment
  55. 2026-09-09 20:02 UTCVendor advisory
  56. 2026-09-09 20:02 UTCGHSA enrichment
  57. 2026-09-08 23:56 UTCEG score recompute
  58. 2026-09-08 23:56 UTCVendor advisory
  59. 2026-09-08 23:56 UTCGHSA enrichment
  60. 2026-09-08 20:41 UTCEG score recompute
  61. 2026-09-08 20:41 UTCGHSA enrichment
  62. 2026-09-08 20:16 UTCEG score recompute
  63. 2026-09-08 20:16 UTCGHSA enrichment
  64. 2026-09-08 18:42 UTCEG score recompute
  65. 2026-09-08 18:42 UTCVendor advisory
  66. 2026-09-08 18:42 UTCGHSA enrichment
  67. 2026-09-08 17:47 UTCEG score recompute
  68. 2026-09-08 17:47 UTCVendor advisory
  69. 2026-09-08 17:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-72942?
CVE-2026-72942 is a medium vulnerability published on September 8, 2026. Out-of-bounds read in Windows Spaceport.sys allows an unauthorized attacker to disclose information over a network.
When was CVE-2026-72942 disclosed?
CVE-2026-72942 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-2026-72942 actively exploited?
CVE-2026-72942 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 41.4% of all scored CVEs.
What is the CVSS score of CVE-2026-72942?
CVE-2026-72942 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-72942?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72942, 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-2026-72942

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