CVE-2024-42458

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2024-08-02. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

server.c in Neat VNC (aka neatvnc) before 0.8.1 does not properly validate the security type, a related issue to CVE-2006-2369.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

August 2, 2024

Last Modified

September 5, 2024

Advisory Details (6)

Auto-updated Jul 31, 2026
Patch available. Sources: github_commit, github_release.
generic

oss-security - RE: Neat VNC Security Vulnerability

https://www.openwall.com/lists/oss-security/2024/08/02/7
generic

oss-security - Re: Neat VNC Security Vulnerability

https://www.openwall.com/lists/oss-security/2024/08/02/10
generic

oss-security - Neat VNC Security Vulnerability

https://www.openwall.com/lists/oss-security/2024/08/02/1
github_release Patch Available

v0.8.1

Patch available: any1/neatvnc v0.8.1

https://github.com/any1/neatvnc/releases/tag/v0.8.1
generic

Comparing v0.8.0...v0.8.1 · any1/neatvnc · GitHub

https://github.com/any1/neatvnc/compare/v0.8.0...v0.8.1
github_commit Patch Available

commit cc71650a69ab (any1/neatvnc)

Patch available: any1/neatvnc v0.8.1 (contains commit cc71650a69ab)

https://github.com/any1/neatvnc/commit/cc71650a69abc2573a0d96d082409d2468802d47

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 43× 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 119 total refreshes for this CVE.

  1. 2026-08-08 16:35 UTCEPSS rescore
  2. 2026-08-07 16:25 UTCEPSS rescore
  3. 2026-08-06 13:45 UTCEPSS rescore
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  20. 2026-07-23 02:39 UTCEG score recompute
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  64. 2026-06-08 01:28 UTCOSV refresh
  65. 2026-06-07 15:24 UTCEPSS rescore
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  73. 2026-06-04 13:11 UTCEPSS rescore
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  75. 2026-06-02 20:12 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2024-42458?
CVE-2024-42458 is a critical vulnerability published on August 2, 2024. server.c in Neat VNC (aka neatvnc) before 0.8.1 does not properly validate the security type, a related issue to CVE-2006-2369.
When was CVE-2024-42458 disclosed?
CVE-2024-42458 was first published in the National Vulnerability Database on August 2, 2024, with the most recent update on September 5, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-42458 actively exploited?
CVE-2024-42458 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 45.9% of all scored CVEs.
What is the CVSS score of CVE-2024-42458?
CVE-2024-42458 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2024-42458?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-42458, 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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