CVE-2026-62742

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-08-11. the CNA's CVSS baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
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: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

August 11, 2026

Last Modified

August 20, 2026

Advisory Details (1)

Auto-updated Aug 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-2026-62742

Vendor Advisories for CVE-2026-62742(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 67× in last 7d / 108× 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 108 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-62742?
CVE-2026-62742 is a medium vulnerability published on August 11, 2026. Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
When was CVE-2026-62742 disclosed?
CVE-2026-62742 was first published in the National Vulnerability Database on August 11, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62742 actively exploited?
CVE-2026-62742 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 60.4% of all scored CVEs.
What is the CVSS score of CVE-2026-62742?
CVE-2026-62742 has a CVSS v4.0 base score of 6.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-62742?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62742, 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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