Buffer Overflow in the entry handler of the TraceEvent() system call could allow an attacker with local access to cause information disclosure, data tampering or a crash of the QNX Neutrino kernel.
CVE-2026-4017
HIGHPre-NVD 7.47.4—Trending — 4 sources updated this week
EchelonGraph scoreHIGH confidence
Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-07-14. a secondary CVSS source baseline 7.4; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.4Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.4
- EG Score
- 7.4(high)
- EPSS
- 2.1%
- KEV
- Not listed
Published
July 14, 2026
Last Modified
July 15, 2026
Advisory Details (1)
Auto-updated Jul 15, 2026No patch confirmed yet.
Vendor Advisories for CVE-2026-4017(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 8× in last 7d / 8× 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.
- 2026-07-15 18:35 UTCEG score recompute
- 2026-07-15 18:34 UTCGHSA enrichment
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 06:07 UTCEG score recompute
- 2026-07-15 06:07 UTCGHSA enrichment
- 2026-07-14 17:40 UTCMITRE cvelistV5first tracked
- 2026-07-14 17:40 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-121
- CVE-2012-10058EG 10.0CRITICAL
- CVE-2010-20113EG 9.8CRITICAL
- CVE-2010-20121EG 9.8CRITICAL
- CVE-2012-10060EG 9.8CRITICAL
- CVE-2012-10023EG 9.8CRITICAL
- CVE-2013-10042EG 9.8CRITICAL
- CVE-2012-10021EG 9.8CRITICAL
- CVE-2014-125117EG 9.8EPSS 91%CRITICAL
- CVE-2017-14854NVD 9.1EG 9.8EPSS 94%CRITICAL
- CVE-2015-1006EG 9.8EPSS 92%CRITICAL
Frequently asked(5)
What is CVE-2026-4017?
CVE-2026-4017 is a high vulnerability published on July 14, 2026. Buffer Overflow in the entry handler of the TraceEvent() system call could allow an attacker with local access to cause information disclosure, data tampering or a crash of the QNX Neutrino kernel.
When was CVE-2026-4017 disclosed?
CVE-2026-4017 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4017 actively exploited?
CVE-2026-4017 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4017?
CVE-2026-4017 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-4017?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4017, 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-2026-4017
Is Your Infrastructure Affected by CVE-2026-4017?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.