CVE-2026-62883

MEDIUMPre-NVD 6.76.7—
EchelonGraph scoreMEDIUM confidence

Score 6.7 from GitHub Security Advisory published 2026-08-11. The CNA's CVSS baseline 6.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
6.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.7Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.

CVSS v3
6.7
EG Score
6.7MEDIUMmedium confidence
EG Risk
30
EG Risk 30/100CISA SSVC

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
Severity67% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
26th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 11, 2026

Last Modified

September 29, 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-2026-62883

Vendor Advisories for CVE-2026-62883(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 20× in last 7d / 100× 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 284 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-62883?
CVE-2026-62883 is a medium vulnerability published on August 11, 2026. Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.
When was CVE-2026-62883 disclosed?
CVE-2026-62883 was first published on August 11, 2026, with the most recent update on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62883 actively exploited?
CVE-2026-62883 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-62883?
CVE-2026-62883 has a CVSS base score of 6.7 (the CNA's own assessment, by microsoft; NVD's own analysis pending).
How do I remediate CVE-2026-62883?
A fix for CVE-2026-62883 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-62883 are linked in the Vendor Advisories panel on this page.

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