CVE-2026-61347

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-08-11. the CNA's CVSS baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

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

Buffer over-read in Windows Event Logging Service allows an authorized attacker to disclose information locally.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
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-2026-61347

Vendor Advisories for CVE-2026-61347(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 20× in last 7d / 117× 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 217 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-61347?
CVE-2026-61347 is a medium vulnerability published on August 11, 2026. Buffer over-read in Windows Event Logging Service allows an authorized attacker to disclose information locally.
When was CVE-2026-61347 disclosed?
CVE-2026-61347 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-2026-61347 actively exploited?
CVE-2026-61347 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 67.3% of all scored CVEs.
What is the CVSS score of CVE-2026-61347?
CVE-2026-61347 has a CVSS v4.0 base score of 5.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-61347?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61347, 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-2026-61347

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