CVE-2026-69819

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-08. the CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
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.

Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
59%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 18, 2026

Advisory Details (1)

Auto-updated Sep 18, 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-2026-69819

Vendor Advisories for CVE-2026-69819(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 100× in last 7d / 170× 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 170 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-69819?
CVE-2026-69819 is a critical vulnerability published on September 8, 2026. Out-of-bounds write in RPC Runtime allows an unauthorized attacker to execute code over a network.
When was CVE-2026-69819 disclosed?
CVE-2026-69819 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-69819 actively exploited?
CVE-2026-69819 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 41.0% of all scored CVEs.
What is the CVSS score of CVE-2026-69819?
CVE-2026-69819 has a CVSS v4.0 base score of 9.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-69819?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-69819, 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

Explore the affected products and dependency analysis for CVE-2026-69819

Explore →

Is Your Infrastructure Affected by CVE-2026-69819?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs