CVE-2026-58541

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-14. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 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.

Access of resource using incompatible type ('type confusion') in Windows DWM allows an authorized attacker to elevate privileges locally.

CVSS v3
7.8
EG Score
7.8(medium)
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
27%
KEV
Not listed

Published

July 14, 2026

Last Modified

September 17, 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-2026-58541

Vendor Advisories for CVE-2026-58541(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 19× in last 7d / 108× 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 303 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-58541?
CVE-2026-58541 is a high vulnerability published on July 14, 2026. Access of resource using incompatible type ('type confusion') in Windows DWM allows an authorized attacker to elevate privileges locally.
When was CVE-2026-58541 disclosed?
CVE-2026-58541 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58541 actively exploited?
CVE-2026-58541 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 73.2% of all scored CVEs.
What is the CVSS score of CVE-2026-58541?
CVE-2026-58541 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-58541?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58541, 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

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