CVE-2024-42366

CRITICALNVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 48% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.0Exploit: Elevated riskExposed: 0

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

VRCX is an assistant/companion application for VRChat. In versions prior to 2024.03.23, a CefSharp browser with over-permission and cross-site scripting via overlay notification can be combined to result in remote command execution. These vulnerabilities are patched in VRCX 2023.12.24. In addition to the patch, VRCX maintainers worked with the VRC team and blocked the older version of VRCX on the VRC's API side. Users who use the older version of VRCX must update their installation to continue using VRCX.

CVSS v3
9.0
EG Score
9.0(medium)
EG Risk
57(Track*)
EG Risk 57/100SSVC: 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
Severity90% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
53%
KEV
Not listed

Published

August 8, 2024

Last Modified

August 29, 2024

Advisory Details (1)

Auto-updated Jul 24, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit cd2387aa3289 (vrcx-team/VRCX)

Fix landed in vrcx-team/VRCX commit cd2387aa3289 — awaiting tagged release

https://github.com/vrcx-team/VRCX/commit/cd2387aa3289f936ce60049121c24b0765bd4180

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 42× 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 114 total refreshes for this CVE.

  1. 2026-08-07 16:25 UTCEPSS rescore
  2. 2026-08-06 13:45 UTCEPSS rescore
  3. 2026-08-05 19:16 UTCEPSS rescore
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  19. 2026-07-23 02:39 UTCEG score recompute
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  1. 2026-07-19 02:28 UTCEPSS rescore
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  35. 2026-06-25 06:01 UTCOSV refresh
  36. 2026-06-24 14:04 UTCEPSS rescore
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  40. 2026-06-22 14:25 UTCEPSS rescore
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  64. 2026-06-08 00:58 UTCOSV refresh
  65. 2026-06-07 15:24 UTCEPSS rescore
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  67. 2026-06-06 13:46 UTCEPSS rescore
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  73. 2026-06-04 13:11 UTCEPSS rescore
  74. 2026-06-04 13:11 UTCEPSS rescore
  75. 2026-06-02 20:12 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2024-42366?
CVE-2024-42366 is a critical vulnerability published on August 8, 2024. VRCX is an assistant/companion application for VRChat. In versions prior to 2024.03.23, a CefSharp browser with over-permission and cross-site scripting via overlay notification can be combined to result in remote command execution. These vulnerabilities are patched in VRCX 2023.12.24. In addition…
When was CVE-2024-42366 disclosed?
CVE-2024-42366 was first published in the National Vulnerability Database on August 8, 2024, with the most recent update on August 29, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-42366 actively exploited?
CVE-2024-42366 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 47.2% of all scored CVEs.
What is the CVSS score of CVE-2024-42366?
CVE-2024-42366 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2024-42366?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-42366, 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.

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