CVE-2026-54424

HIGHPre-NVD 8.48.4—
EchelonGraph scoreHIGH 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
8.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.4Exploit: NoneExposed: 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(high)
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
15.8%
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 11× in last 7d / 57× 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. 2026-07-23 03:19 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:25 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
  5. 2026-07-19 14:31 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 02:29 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-17 01:27 UTCGHSA enrichment
  10. 2026-07-16 17:03 UTCEPSS rescore
  11. 2026-07-16 12:26 UTCGHSA enrichment
  12. 2026-07-15 23:20 UTCGHSA enrichment
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 16:57 UTCEPSS rescore
  15. 2026-07-15 10:19 UTCGHSA enrichment
  16. 2026-07-15 02:00 UTCEPSS rescore
  17. 2026-07-15 02:00 UTCEPSS rescore
  18. 2026-07-14 21:19 UTCGHSA enrichment
  19. 2026-07-14 08:19 UTCGHSA enrichment
  20. 2026-07-13 22:31 UTCEPSS rescore
  21. 2026-07-13 19:18 UTCGHSA enrichment
  22. 2026-07-13 06:17 UTCGHSA enrichment
  23. 2026-07-13 06:13 UTCEPSS rescore
  24. 2026-07-13 06:13 UTCEPSS rescore
  25. 2026-07-12 17:16 UTCGHSA enrichment
Show 32 more
  1. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-12 04:16 UTCGHSA enrichment
  3. 2026-07-11 15:15 UTCGHSA enrichment
  4. 2026-07-11 08:27 UTCEPSS rescore
  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-11 02:14 UTCGHSA enrichment
  7. 2026-07-10 13:13 UTCGHSA enrichment
  8. 2026-07-10 00:11 UTCGHSA enrichment
  9. 2026-07-09 19:10 UTCEPSS rescore
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-09 11:10 UTCGHSA enrichment
  12. 2026-07-08 22:10 UTCGHSA enrichment
  13. 2026-07-08 15:16 UTCEPSS rescore
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-08 09:10 UTCGHSA enrichment
  16. 2026-07-07 20:08 UTCGHSA enrichment
  17. 2026-07-07 13:46 UTCEPSS rescore
  18. 2026-07-07 13:46 UTCEPSS rescore
  19. 2026-07-07 07:08 UTCGHSA enrichment
  20. 2026-07-06 18:06 UTCGHSA enrichment
  21. 2026-07-06 16:27 UTCEPSS rescore
  22. 2026-07-06 16:27 UTCEPSS rescore
  23. 2026-07-06 05:05 UTCGHSA enrichment
  24. 2026-07-06 02:23 UTCEPSS rescore
  25. 2026-07-06 02:23 UTCEPSS rescore
  26. 2026-07-05 16:05 UTCGHSA enrichment
  27. 2026-07-05 03:04 UTCGHSA enrichment
  28. 2026-07-05 02:31 UTCEPSS rescore
  29. 2026-07-05 02:30 UTCEPSS rescore
  30. 2026-07-04 14:02 UTCGHSA enrichment
  31. 2026-07-04 01:02 UTCEG score recompute
  32. 2026-07-04 01:01 UTCMITRE cvelistV5first tracked

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 15.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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

Explore the affected products and dependency analysis for CVE-2026-54424

Explore →

Is Your Infrastructure Affected by CVE-2026-54424?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs