CVE-2026-54424

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-07-04. a secondary CVSS source baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: None knownExposed: 0

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

An Incorrect Use of Privileged APIs vulnerability in Unity Parsec on Windows hosts leads to a potential Elevation of Privilege. This issue affects Parsec through v2026-05-04.0. The patched version is Parsec for Windows version 150-104a. A user can generate a situation where there is an instance of parsecd.exe running as NT AUTHORITY\SYSTEM with a user-controlled value of the AppData environment variable.

CVSS v3
8.4
EG Score
8.4(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity84% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

July 4, 2026

Last Modified

July 6, 2026

Advisory Details (3)

Auto-updated Jul 4, 2026
No patch confirmed yet.
generic

Portfolio

https://www.tomadimitrie.dev/blog/CVE-2026-54424
generic

Connect to Work or Games from Anywhere | Parsec

https://parsec.app/
generic

GitHub - tomadimitrie/CVE-2026-54424: Exploiting Parsec for Windows to gain SYSTEM privileges · GitHub

https://github.com/tomadimitrie/CVE-2026-54424

Vendor Advisories for CVE-2026-54424(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.

Data Freshness Timeline

(refreshed 13× in last 7d / 56× 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 209 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-54424?
CVE-2026-54424 is a high vulnerability published on July 4, 2026. An Incorrect Use of Privileged APIs vulnerability in Unity Parsec on Windows hosts leads to a potential Elevation of Privilege. This issue affects Parsec through v2026-05-04.0. The patched version is Parsec for Windows version 150-104a. A user can generate a situation where there is an instance of…
When was CVE-2026-54424 disclosed?
CVE-2026-54424 was first published in the National Vulnerability Database on July 4, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54424 actively exploited?
CVE-2026-54424 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 91.6% of all scored CVEs.
What is the CVSS score of CVE-2026-54424?
CVE-2026-54424 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2026-54424?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54424, 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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