CVE-2026-97686

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory published 2026-09-28. A secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: <0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Wind River VxWorks 7 prior to 26.09, specific system call arguments can result in the IPNET subsystem failing to properly release allocated kernel memory and system file descriptors before terminating the calling application. Fixed in Version 26.09.

CVSS v3
5.5
EG Score
5.5MEDIUMhigh confidence
EG Risk
25
EG Risk 25/100CISA SSVC

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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
<0.1%
EPSS %ILE
below the 1st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 28, 2026

Last Modified

September 28, 2026

Advisory Details (1)

Auto-updated Sep 28, 2026
Fix named in the CVE record.
generic

CVE - Wind River Support Network

https://support2.windriver.com/index.php?page=cve&order_by=cve_modified_date&order_way=asc#list

Vendor Advisories for CVE-2026-97686(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 18× in last 7d / 18× 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. 2026-10-04 06:01 UTCGHSA enrichment
  2. 2026-10-03 04:32 UTCGHSA enrichment
  3. 2026-10-02 03:03 UTCEG score recompute
  4. 2026-10-02 03:02 UTCGHSA enrichment
  5. 2026-10-01 19:51 UTCEPSS rescore
  6. 2026-10-01 01:30 UTCEG score recompute
  7. 2026-10-01 01:30 UTCGHSA enrichment
  8. 2026-09-30 15:04 UTCEPSS rescore
  9. 2026-09-30 00:01 UTCEG score recompute
  10. 2026-09-30 00:01 UTCGHSA enrichment
  11. 2026-09-28 22:29 UTCEG score recompute
  12. 2026-09-28 22:29 UTCGHSA enrichment
  13. 2026-09-28 21:47 UTCEG score recompute
  14. 2026-09-28 21:47 UTCGHSA enrichment
  15. 2026-09-28 20:29 UTCEG score recompute
  16. 2026-09-28 19:26 UTCEG score recompute
  17. 2026-09-28 18:52 UTCEG score recompute
  18. 2026-09-28 18:51 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-97686?
CVE-2026-97686 is a medium vulnerability published on September 28, 2026. Wind River VxWorks 7 prior to 26.09, specific system call arguments can result in the IPNET subsystem failing to properly release allocated kernel memory and system file descriptors before terminating the calling application. Fixed in Version 26.09.
When was CVE-2026-97686 disclosed?
CVE-2026-97686 was first published on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-97686 actively exploited?
CVE-2026-97686 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a <0.1% probability of exploitation in the next 30 days (below the 1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-97686?
CVE-2026-97686 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-97686?
A fix for CVE-2026-97686 is available — its CVE record says: "Fixed in Version 26.09." The vendor advisories EchelonGraph has for CVE-2026-97686 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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