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CVE-2026-90647

ASE2000 V2 Communication Test Set · Vulnerability

CVSS 4.0 9.1 CRITICALCVSS 3.1 7.4 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-90647

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90647

Published

ASE2000 V2 Communication Test Set

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "platforms": [
                        "Windows"
                    ],
                    "product": "ASE2000 V2 Communication Test Set",
                    "vendor": "Kalkitech",
                    "versions": [
                        {
                            "lessThan": "2.38",
                            "status": "affected",
                            "version": "2.35",
                            "versionType": "custom"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON