CVE-2026-50523

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-14. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 5 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

Improper neutralization of special elements used in a command ('command injection') in Microsoft PowerShell allows an authorized attacker to execute code locally.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

August 14, 2026

Last Modified

August 20, 2026

Advisory Details (1)

Auto-updated Aug 14, 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-2026-50523

Vendor Advisories for CVE-2026-50523(1)

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.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 84× in last 7d / 84× 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. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 22:08 UTCVendor advisory
  3. 2026-08-20 22:08 UTCGHSA enrichment
  4. 2026-08-20 21:57 UTCVendor advisory
  5. 2026-08-20 21:57 UTCGHSA enrichment
  6. 2026-08-20 16:38 UTCVendor advisory
  7. 2026-08-20 16:38 UTCGHSA enrichment
  8. 2026-08-20 14:57 UTCVendor advisory
  9. 2026-08-20 14:57 UTCGHSA enrichment
  10. 2026-08-20 14:08 UTCVendor advisory
  11. 2026-08-20 14:08 UTCGHSA enrichment
  12. 2026-08-20 08:41 UTCVendor advisory
  13. 2026-08-20 08:41 UTCGHSA enrichment
  14. 2026-08-19 21:28 UTCVendor advisory
  15. 2026-08-19 21:28 UTCGHSA enrichment
  16. 2026-08-19 21:05 UTCEG score recompute
  17. 2026-08-19 21:05 UTCVendor advisory
  18. 2026-08-19 21:05 UTCGHSA enrichment
  19. 2026-08-19 17:04 UTCEPSS rescore
  20. 2026-08-19 16:46 UTCVendor advisory
  21. 2026-08-19 16:46 UTCGHSA enrichment
  22. 2026-08-19 15:22 UTCVendor advisory
  23. 2026-08-19 15:22 UTCGHSA enrichment
  24. 2026-08-19 15:10 UTCVendor advisory
  25. 2026-08-19 15:10 UTCGHSA enrichment
Show 59 more
  1. 2026-08-19 14:27 UTCVendor advisory
  2. 2026-08-19 14:27 UTCGHSA enrichment
  3. 2026-08-19 09:52 UTCVendor advisory
  4. 2026-08-19 09:52 UTCGHSA enrichment
  5. 2026-08-18 22:39 UTCGHSA enrichment
  6. 2026-08-18 22:04 UTCGHSA enrichment
  7. 2026-08-18 17:26 UTCEG score recompute
  8. 2026-08-18 17:26 UTCVendor advisory
  9. 2026-08-18 17:26 UTCGHSA enrichment
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-18 13:23 UTCVendor advisory
  12. 2026-08-18 13:23 UTCGHSA enrichment
  13. 2026-08-18 04:22 UTCEG score recompute
  14. 2026-08-18 04:21 UTCGHSA enrichment
  15. 2026-08-18 04:07 UTCEG score recompute
  16. 2026-08-18 04:07 UTCGHSA enrichment
  17. 2026-08-17 18:34 UTCEG score recompute
  18. 2026-08-17 18:34 UTCVendor advisory
  19. 2026-08-17 18:34 UTCGHSA enrichment
  20. 2026-08-17 18:11 UTCEG score recompute
  21. 2026-08-17 18:11 UTCVendor advisory
  22. 2026-08-17 18:11 UTCGHSA enrichment
  23. 2026-08-17 18:00 UTCVendor advisory
  24. 2026-08-17 18:00 UTCGHSA enrichment
  25. 2026-08-17 16:11 UTCEG score recompute
  26. 2026-08-17 16:11 UTCVendor advisory
  27. 2026-08-17 16:11 UTCGHSA enrichment
  28. 2026-08-17 13:47 UTCEPSS rescore
  29. 2026-08-17 13:44 UTCEG score recompute
  30. 2026-08-17 13:44 UTCVendor advisory
  31. 2026-08-17 13:44 UTCGHSA enrichment
  32. 2026-08-17 06:04 UTCVendor advisory
  33. 2026-08-17 06:04 UTCGHSA enrichment
  34. 2026-08-16 18:52 UTCVendor advisory
  35. 2026-08-16 18:52 UTCGHSA enrichment
  36. 2026-08-16 18:37 UTCVendor advisory
  37. 2026-08-16 18:37 UTCGHSA enrichment
  38. 2026-08-16 17:27 UTCVendor advisory
  39. 2026-08-16 17:27 UTCGHSA enrichment
  40. 2026-08-16 16:34 UTCEG score recompute
  41. 2026-08-16 16:34 UTCVendor advisory
  42. 2026-08-16 16:34 UTCGHSA enrichment
  43. 2026-08-16 14:56 UTCEPSS rescore
  44. 2026-08-16 07:37 UTCEG score recompute
  45. 2026-08-16 07:37 UTCVendor advisory
  46. 2026-08-16 07:37 UTCGHSA enrichment
  47. 2026-08-16 02:14 UTCEPSS rescore
  48. 2026-08-15 20:25 UTCVendor advisory
  49. 2026-08-15 20:25 UTCGHSA enrichment
  50. 2026-08-15 09:12 UTCVendor advisory
  51. 2026-08-15 09:12 UTCGHSA enrichment
  52. 2026-08-14 21:59 UTCEG score recompute
  53. 2026-08-14 21:59 UTCVendor advisory
  54. 2026-08-14 21:59 UTCGHSA enrichment
  55. 2026-08-14 21:19 UTCEG score recompute
  56. 2026-08-14 21:19 UTCVendor advisory
  57. 2026-08-14 21:14 UTCEG score recompute
  58. 2026-08-14 21:14 UTCVendor advisory
  59. 2026-08-14 21:14 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-50523?
CVE-2026-50523 is a high vulnerability published on August 14, 2026. Improper neutralization of special elements used in a command ('command injection') in Microsoft PowerShell allows an authorized attacker to execute code locally.
When was CVE-2026-50523 disclosed?
CVE-2026-50523 was first published in the National Vulnerability Database on August 14, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-50523 actively exploited?
CVE-2026-50523 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 87.7% of all scored CVEs.
What is the CVSS score of CVE-2026-50523?
CVE-2026-50523 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-50523?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-50523, 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-2026-50523

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