# CVE-2026-40434

## Summary

- **CVE ID:** CVE-2026-40434
- **Severity:** HIGH
- **CVSS Score:** 8.1 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H)
- **CWE:** CWE-940
- **Published:** Apr 17, 2026
- **Last Modified:** Apr 17, 2026

## Description

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

## Affected Products

- Anviz — Anviz CrossChex Standard (All versions)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.23%
- **EPSS Percentile:** 13.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._