CVE-2026-50492

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreHIGH confidence

Score 6.8 from GitHub Security Advisory published 2026-07-14. the CNA's CVSS baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.8Exploit: 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 Windows Resilient File System (ReFS) allows an unauthorized attacker to execute code with a physical attack.

CVSS v3
6.8
EG Score
6.8(high)
EG Risk
31(Track)
EG Risk 31/100SSVC: 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
Severity68% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

July 14, 2026

Last Modified

July 26, 2026

Advisory Details (1)

Auto-updated Jul 15, 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-2026-50492

Vendor Advisories for CVE-2026-50492(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 14× in last 7d / 32× 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. 2026-07-26 17:56 UTCEG score recompute
  2. 2026-07-26 17:56 UTCVendor advisory
  3. 2026-07-26 17:56 UTCGHSA enrichment
  4. 2026-07-26 14:54 UTCEPSS rescore
  5. 2026-07-26 04:52 UTCEG score recompute
  6. 2026-07-26 04:52 UTCVendor advisory
  7. 2026-07-26 04:52 UTCGHSA enrichment
  8. 2026-07-25 14:18 UTCEPSS rescore
  9. 2026-07-24 14:18 UTCEPSS rescore
  10. 2026-07-23 14:18 UTCEPSS rescore
  11. 2026-07-23 03:18 UTCEG score recompute
  12. 2026-07-22 14:08 UTCEPSS rescore
  13. 2026-07-21 15:25 UTCEPSS rescore
  14. 2026-07-20 17:08 UTCEPSS rescore
  15. 2026-07-19 03:03 UTCEG score recompute
  16. 2026-07-19 03:03 UTCVendor advisory
  17. 2026-07-19 03:03 UTCGHSA enrichment
  18. 2026-07-19 02:29 UTCEPSS rescore
  19. 2026-07-18 10:04 UTCEPSS rescore
  20. 2026-07-17 07:50 UTCEG score recompute
  21. 2026-07-17 07:50 UTCVendor advisory
  22. 2026-07-17 07:50 UTCGHSA enrichment
  23. 2026-07-16 17:03 UTCEPSS rescore
  24. 2026-07-16 16:09 UTCVendor advisory
  25. 2026-07-16 16:09 UTCGHSA enrichment
Show 7 more
  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 16:57 UTCVendor advisory
  4. 2026-07-15 16:57 UTCGHSA enrichment
  5. 2026-07-14 17:46 UTCEG score recompute
  6. 2026-07-14 17:46 UTCVendor advisory
  7. 2026-07-14 17:40 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-50492?
CVE-2026-50492 is a medium vulnerability published on July 14, 2026. Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an unauthorized attacker to execute code with a physical attack.
When was CVE-2026-50492 disclosed?
CVE-2026-50492 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on July 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50492 actively exploited?
CVE-2026-50492 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 66.6% of all scored CVEs.
What is the CVSS score of CVE-2026-50492?
CVE-2026-50492 has a CVSS v4.0 base score of 6.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-50492?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50492, 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-2026-50492

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