CVE-2026-90647

HIGH
7.4
CVSS Score
Published: September 12, 2026 at 10:38 PM UTC
Updated: September 22, 2026 at 08:11 PM UTC
1 product affected across 1 vendorAse2000-v2

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Severity
HIGH7.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.35 ≤ v < 2.382.35
Affected range stops below 2.38, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGHmitre
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-295

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