CVE-2026-40434

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

17/04/2026

Last modified:

20/04/2026

Description

Anviz CrossChex Standard<br /> lacks source verification in the client/server channel, enabling TCP <br /> packet injection by an attacker on the same network to alter or disrupt <br /> application traffic.

Impact

Vector 3.x

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.10 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): High

Base Score 3.x

8.10

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-106-03.json
https://www.anviz.com/contact-us.html
https://www.cisa.gov/news-events/ics-advisories/icsa-26-106-03