CVE-2026-44815

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-09. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

Stack-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to execute code over a network.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
62%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Jul 25, 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-2026-44815

Vendor Advisories for CVE-2026-44815(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 23× in last 7d / 191× 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 405 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-44815?
CVE-2026-44815 is a critical vulnerability published on June 9, 2026. Stack-based buffer overflow in Windows DHCP Client allows an unauthorized attacker to execute code over a network.
When was CVE-2026-44815 disclosed?
CVE-2026-44815 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44815 actively exploited?
CVE-2026-44815 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 37.7% of all scored CVEs.
What is the CVSS score of CVE-2026-44815?
CVE-2026-44815 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-44815?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44815, 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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