CVE-2026-90647

HIGHPre-NVD 7.47.4—
EchelonGraph scoreHIGH confidence

Score 7.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-13. a secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

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

ASE/Kalkitech ASE2000 V2 Communication Test Set 2.35 through 2.37 on Windows contains an improper certificate validation vulnerability in the IEC 60870-5-104 TLS client (Task Mode). This allows a network-positioned attacker to bypass certificate validation via a certificate with multiple simultaneous faults, enabling a Man-in-the-Middle attack on protected communications.

CVSS v3
7.4
EG Score
7.4(high)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

September 12, 2026

Last Modified

September 15, 2026

Advisory Details (1)

Auto-updated Sep 12, 2026
No patch confirmed yet.
generic
https://www.ase-systems.com/wp-content/uploads/2026/07/CYB_2026_86278_Advisory_v1.0.pdf

Vendor Advisories for CVE-2026-90647(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 28× in last 7d / 33× 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. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 20:06 UTCGHSA enrichment
  3. 2026-09-20 08:00 UTCGHSA enrichment
  4. 2026-09-19 19:55 UTCEG score recompute
  5. 2026-09-19 19:55 UTCGHSA enrichment
  6. 2026-09-19 07:50 UTCGHSA enrichment
  7. 2026-09-18 19:45 UTCGHSA enrichment
  8. 2026-09-18 07:40 UTCGHSA enrichment
  9. 2026-09-17 19:35 UTCEG score recompute
  10. 2026-09-17 19:35 UTCGHSA enrichment
  11. 2026-09-17 19:32 UTCEPSS rescore
  12. 2026-09-17 06:50 UTCGHSA enrichment
  13. 2026-09-16 18:45 UTCEG score recompute
  14. 2026-09-16 18:45 UTCGHSA enrichment
  15. 2026-09-16 14:09 UTCEPSS rescore
  16. 2026-09-16 06:40 UTCEG score recompute
  17. 2026-09-16 06:40 UTCGHSA enrichment
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-15 18:35 UTCEG score recompute
  20. 2026-09-15 18:35 UTCGHSA enrichment
  21. 2026-09-15 17:24 UTCEG score recompute
  22. 2026-09-15 17:24 UTCGHSA enrichment
  23. 2026-09-15 11:43 UTCEG score recompute
  24. 2026-09-15 11:43 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 8 more
  1. 2026-09-14 23:38 UTCGHSA enrichment
  2. 2026-09-14 11:33 UTCGHSA enrichment
  3. 2026-09-13 23:28 UTCGHSA enrichment
  4. 2026-09-13 11:23 UTCEG score recompute
  5. 2026-09-13 11:23 UTCGHSA enrichment
  6. 2026-09-12 23:18 UTCEG score recompute
  7. 2026-09-12 22:42 UTCEG score recompute
  8. 2026-09-12 22:42 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90647?
CVE-2026-90647 is a high vulnerability published on September 12, 2026. ASE/Kalkitech ASE2000 V2 Communication Test Set 2.35 through 2.37 on Windows contains an improper certificate validation vulnerability in the IEC 60870-5-104 TLS client (Task Mode). This allows a network-positioned attacker to bypass certificate validation via a certificate with multiple…
When was CVE-2026-90647 disclosed?
CVE-2026-90647 was first published in the National Vulnerability Database on September 12, 2026, with the most recent update on September 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90647 actively exploited?
CVE-2026-90647 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 96.5% of all scored CVEs.
What is the CVSS score of CVE-2026-90647?
CVE-2026-90647 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-90647?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90647, 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-2026-90647

Explore →

Is Your Infrastructure Affected by CVE-2026-90647?

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

Start Free Scan →Browse All CVEs