CVE-2026-42822

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-18. the CNA's CVSS baseline 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 10.0Exploit: None knownExposed: 0

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

Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges over a network.

CVSS v3
10.0
EG Score
10.0(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
Severity100% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

May 18, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Aug 24, 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-2026-42822

Vendor Advisories for CVE-2026-42822(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 10× in last 7d / 157× 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 459 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-42822?
CVE-2026-42822 is a critical vulnerability published on May 18, 2026. Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges over a network.
When was CVE-2026-42822 disclosed?
CVE-2026-42822 was first published in the National Vulnerability Database on May 18, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42822 actively exploited?
CVE-2026-42822 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 59.7% of all scored CVEs.
What is the CVSS score of CVE-2026-42822?
CVE-2026-42822 has a CVSS v4.0 base score of 10.0 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-42822?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42822, 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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