Vulnerability in Kalkitech Ase2000 V2 Communication Test Set
CVE-2026-90647
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.
Vulnerability class: Improper Certificate Validation
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
Weakness classification (CWE)
References
- cve@mitre.org (vendor-advisory)
Frequently asked questions
- What is CVE-2026-90647?
- CVE-2026-90647 is a high-severity vulnerability in Kalkitech Ase2000 V2 Communication Test Set, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2026-09-12.
- How severe is CVE-2026-90647?
- High severity. CVSS v3 base score is 7.4 out of 10.