CVE-2026-72931

MEDIUMPre-NVD 4.74.7—
EchelonGraph scoreHIGH confidence

Score 4.7 from GitHub Security Advisory published 2026-09-08. the CNA's CVSS baseline 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
4.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.7Exploit: None knownExposed: 0

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

Missing release of resource after effective lifetime in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to deny service locally.

CVSS v3
4.7
EG Score
4.7(high)
EG Risk
21(Track)
EG Risk 21/100SSVC: 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
Severity47% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 18, 2026

Advisory Details (1)

Auto-updated Sep 9, 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-2026-72931

Vendor Advisories for CVE-2026-72931(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 35× in last 7d / 65× 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. 2026-09-19 20:51 UTCEG score recompute
  2. 2026-09-19 20:51 UTCVendor advisory
  3. 2026-09-19 20:51 UTCGHSA enrichment
  4. 2026-09-18 20:58 UTCEG score recompute
  5. 2026-09-18 20:58 UTCVendor advisory
  6. 2026-09-18 20:58 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-18 14:07 UTCVendor advisory
  9. 2026-09-18 14:07 UTCGHSA enrichment
  10. 2026-09-17 23:30 UTCVendor advisory
  11. 2026-09-17 23:30 UTCGHSA enrichment
  12. 2026-09-17 20:08 UTCEG score recompute
  13. 2026-09-17 20:08 UTCVendor advisory
  14. 2026-09-17 20:08 UTCGHSA enrichment
  15. 2026-09-16 22:09 UTCEG score recompute
  16. 2026-09-16 22:09 UTCVendor advisory
  17. 2026-09-16 22:09 UTCGHSA enrichment
  18. 2026-09-16 14:08 UTCEPSS rescore
  19. 2026-09-16 05:15 UTCEPSS rescore
  20. 2026-09-15 22:57 UTCVendor advisory
  21. 2026-09-15 22:57 UTCGHSA enrichment
  22. 2026-09-15 17:41 UTCEG score recompute
  23. 2026-09-15 17:41 UTCVendor advisory
  24. 2026-09-15 17:41 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 40 more
  1. 2026-09-14 23:08 UTCVendor advisory
  2. 2026-09-14 23:08 UTCGHSA enrichment
  3. 2026-09-14 17:40 UTCVendor advisory
  4. 2026-09-14 17:39 UTCGHSA enrichment
  5. 2026-09-13 22:29 UTCEG score recompute
  6. 2026-09-13 22:29 UTCVendor advisory
  7. 2026-09-13 22:29 UTCGHSA enrichment
  8. 2026-09-12 22:36 UTCEG score recompute
  9. 2026-09-12 22:36 UTCVendor advisory
  10. 2026-09-12 22:36 UTCGHSA enrichment
  11. 2026-09-12 15:02 UTCEPSS rescore
  12. 2026-09-11 22:43 UTCVendor advisory
  13. 2026-09-11 22:42 UTCGHSA enrichment
  14. 2026-09-11 20:00 UTCVendor advisory
  15. 2026-09-11 20:00 UTCGHSA enrichment
  16. 2026-09-11 17:01 UTCEG score recompute
  17. 2026-09-11 17:01 UTCVendor advisory
  18. 2026-09-11 17:01 UTCGHSA enrichment
  19. 2026-09-11 14:53 UTCEPSS rescore
  20. 2026-09-10 23:28 UTCGHSA enrichment
  21. 2026-09-10 21:48 UTCEG score recompute
  22. 2026-09-10 21:48 UTCGHSA enrichment
  23. 2026-09-10 09:35 UTCEPSS rescore
  24. 2026-09-09 21:55 UTCGHSA enrichment
  25. 2026-09-09 20:02 UTCVendor advisory
  26. 2026-09-09 20:02 UTCGHSA enrichment
  27. 2026-09-08 23:56 UTCEG score recompute
  28. 2026-09-08 23:56 UTCVendor advisory
  29. 2026-09-08 23:56 UTCGHSA enrichment
  30. 2026-09-08 21:47 UTCEG score recompute
  31. 2026-09-08 21:47 UTCVendor advisory
  32. 2026-09-08 21:46 UTCGHSA enrichment
  33. 2026-09-08 20:50 UTCEG score recompute
  34. 2026-09-08 20:50 UTCGHSA enrichment
  35. 2026-09-08 18:42 UTCEG score recompute
  36. 2026-09-08 18:42 UTCVendor advisory
  37. 2026-09-08 18:42 UTCGHSA enrichment
  38. 2026-09-08 17:47 UTCEG score recompute
  39. 2026-09-08 17:47 UTCVendor advisory
  40. 2026-09-08 17:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72931?
CVE-2026-72931 is a medium vulnerability published on September 8, 2026. Missing release of resource after effective lifetime in Windows Secure Socket Tunneling Protocol (SSTP) allows an authorized attacker to deny service locally.
When was CVE-2026-72931 disclosed?
CVE-2026-72931 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-2026-72931 actively exploited?
CVE-2026-72931 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 83.1% of all scored CVEs.
What is the CVSS score of CVE-2026-72931?
CVE-2026-72931 has a CVSS v4.0 base score of 4.7 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-72931?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72931, 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-2026-72931

Explore →

Is Your Infrastructure Affected by CVE-2026-72931?

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

Start Free Scan →Browse All CVEs