CVE-2026-48563

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-09. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:microsoft, epss, ghsa
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

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

Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

June 9, 2026

Last Modified

August 25, 2026

Advisory Details (1)

Auto-updated Jun 10, 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-2026-48563

Vendor Advisories for CVE-2026-48563(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 53× 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 352 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-48563?
CVE-2026-48563 is a high vulnerability published on June 9, 2026. Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
When was CVE-2026-48563 disclosed?
CVE-2026-48563 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48563 actively exploited?
CVE-2026-48563 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.6% of all scored CVEs.
What is the CVSS score of CVE-2026-48563?
CVE-2026-48563 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-48563?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48563, 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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