CVE-2026-62742

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM 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(medium)
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
41%
KEV
Not listed

Published

August 11, 2026

Last Modified

September 16, 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 24× in last 7d / 138× 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 243 total refreshes for this CVE.

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

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 September 16, 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 59.4% 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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