CVE-2026-72927

MEDIUMPre-NVD 6.76.7—
EchelonGraph scoreHIGH confidence

Score 6.7 from GitHub Security Advisory published 2026-09-08. 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%CVSS: 6.7Exploit: None knownExposed: 0

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

Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally.

CVSS v3
6.7
EG Score
6.7(high)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
Severity67% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 18, 2026

Advisory Details (1)

Auto-updated Sep 8, 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-2026-72927

Vendor Advisories for CVE-2026-72927(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 36× in last 7d / 77× 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.

  1. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 16:49 UTCVendor advisory
  3. 2026-09-20 16:49 UTCGHSA enrichment
  4. 2026-09-19 18:53 UTCEG score recompute
  5. 2026-09-19 18:53 UTCVendor advisory
  6. 2026-09-19 18:53 UTCGHSA enrichment
  7. 2026-09-18 20:58 UTCEG score recompute
  8. 2026-09-18 20:58 UTCVendor advisory
  9. 2026-09-18 20:58 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 14:07 UTCVendor advisory
  12. 2026-09-18 14:07 UTCGHSA enrichment
  13. 2026-09-17 23:30 UTCVendor advisory
  14. 2026-09-17 23:30 UTCGHSA enrichment
  15. 2026-09-17 20:08 UTCEG score recompute
  16. 2026-09-17 20:08 UTCVendor advisory
  17. 2026-09-17 20:08 UTCGHSA enrichment
  18. 2026-09-16 22:09 UTCVendor advisory
  19. 2026-09-16 22:09 UTCGHSA enrichment
  20. 2026-09-16 21:15 UTCEG score recompute
  21. 2026-09-16 21:15 UTCVendor advisory
  22. 2026-09-16 21:15 UTCGHSA enrichment
  23. 2026-09-16 14:08 UTCEPSS rescore
  24. 2026-09-16 05:15 UTCEPSS rescore
  25. 2026-09-15 22:57 UTCVendor advisory
Show 52 more
  1. 2026-09-15 22:57 UTCGHSA enrichment
  2. 2026-09-15 17:41 UTCEG score recompute
  3. 2026-09-15 17:41 UTCVendor advisory
  4. 2026-09-15 17:41 UTCGHSA enrichment
  5. 2026-09-15 03:12 UTCEPSS rescore
  6. 2026-09-14 23:08 UTCVendor advisory
  7. 2026-09-14 23:08 UTCGHSA enrichment
  8. 2026-09-14 17:40 UTCVendor advisory
  9. 2026-09-14 17:39 UTCGHSA enrichment
  10. 2026-09-14 16:31 UTCVendor advisory
  11. 2026-09-14 16:31 UTCGHSA enrichment
  12. 2026-09-13 18:35 UTCEG score recompute
  13. 2026-09-13 18:35 UTCVendor advisory
  14. 2026-09-13 18:35 UTCGHSA enrichment
  15. 2026-09-12 20:39 UTCEG score recompute
  16. 2026-09-12 20:39 UTCVendor advisory
  17. 2026-09-12 20:39 UTCGHSA enrichment
  18. 2026-09-12 15:02 UTCEPSS rescore
  19. 2026-09-11 22:43 UTCVendor advisory
  20. 2026-09-11 22:43 UTCGHSA enrichment
  21. 2026-09-11 20:00 UTCVendor advisory
  22. 2026-09-11 20:00 UTCGHSA enrichment
  23. 2026-09-11 17:01 UTCEG score recompute
  24. 2026-09-11 17:01 UTCVendor advisory
  25. 2026-09-11 17:01 UTCGHSA enrichment
  26. 2026-09-11 14:53 UTCEPSS rescore
  27. 2026-09-10 23:28 UTCGHSA enrichment
  28. 2026-09-10 19:51 UTCEG score recompute
  29. 2026-09-10 19:51 UTCGHSA enrichment
  30. 2026-09-10 09:35 UTCEPSS rescore
  31. 2026-09-09 21:55 UTCGHSA enrichment
  32. 2026-09-09 20:03 UTCEG score recompute
  33. 2026-09-09 20:03 UTCVendor advisory
  34. 2026-09-09 20:02 UTCGHSA enrichment
  35. 2026-09-09 10:27 UTCEG score recompute
  36. 2026-09-09 10:27 UTCVendor advisory
  37. 2026-09-09 10:27 UTCGHSA enrichment
  38. 2026-09-09 10:15 UTCVendor advisory
  39. 2026-09-09 10:15 UTCGHSA enrichment
  40. 2026-09-09 04:30 UTCVendor advisory
  41. 2026-09-09 04:30 UTCGHSA enrichment
  42. 2026-09-09 04:05 UTCEG score recompute
  43. 2026-09-09 04:05 UTCVendor advisory
  44. 2026-09-09 04:05 UTCGHSA enrichment
  45. 2026-09-08 23:56 UTCVendor advisory
  46. 2026-09-08 23:56 UTCGHSA enrichment
  47. 2026-09-08 18:42 UTCEG score recompute
  48. 2026-09-08 18:42 UTCVendor advisory
  49. 2026-09-08 18:42 UTCGHSA enrichment
  50. 2026-09-08 17:47 UTCEG score recompute
  51. 2026-09-08 17:47 UTCVendor advisory
  52. 2026-09-08 17:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-72927?
CVE-2026-72927 is a medium vulnerability published on September 8, 2026. Heap-based buffer overflow in Winsock allows an authorized attacker to elevate privileges locally.
When was CVE-2026-72927 disclosed?
CVE-2026-72927 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-2026-72927 actively exploited?
CVE-2026-72927 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 82.4% of all scored CVEs.
What is the CVSS score of CVE-2026-72927?
CVE-2026-72927 has a CVSS v4.0 base score of 6.7 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-72927?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72927, 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-2026-72927

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