Description
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.
Published: 2026-09-12
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 15 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
Title Improper Certificate Validation in ASE2000 V2 Communication Test Set Enables MITM

Tue, 15 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 15 Sep 2026 03:00:00 +0000

Type Values Removed Values Added
Title Improper Certificate Validation in IEC 60870‑5‑104 TLS Client

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Title Improper Certificate Validation in IEC 60870‑5‑104 TLS Client

Mon, 14 Sep 2026 06:00:00 +0000

Type Values Removed Values Added
Title Improper Certificate Validation in IEC 60870-5-104 TLS Client Enabling Man‑in‑the‑Middle Attack

Sun, 13 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Title Improper Certificate Validation in IEC 60870-5-104 TLS Client Enabling Man‑in‑the‑Middle Attack

Sun, 13 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Kalkitech
Kalkitech ase2000 V2 Communication Test Set
Vendors & Products Kalkitech
Kalkitech ase2000 V2 Communication Test Set

Sun, 13 Sep 2026 13:00:00 +0000

Type Values Removed Values Added
Title Improper Certificate Validation in IEC 60870‑5‑104 TLS Client Allows MITM

Sun, 13 Sep 2026 00:30:00 +0000

Type Values Removed Values Added
Title Improper Certificate Validation in IEC 60870‑5‑104 TLS Client Allows MITM

Sat, 12 Sep 2026 22:45:00 +0000

Type Values Removed Values Added
Description 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.
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.1, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Kalkitech Ase2000 V2 Communication Test Set
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-15T17:10:28.897Z

Reserved: 2026-09-12T22:28:32.772Z

Link: CVE-2026-90647

cve-icon Vulnrichment

Updated: 2026-09-15T17:10:22.795Z

cve-icon NVD

Status : Received

Published: 2026-09-12T23:17:01.490

Modified: 2026-09-15T18:19:37.743

Link: CVE-2026-90647

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T18:30:14Z

Weaknesses