Home/CVE/Anviz CrossChex Standard lacks source verification in the client/server channel, enabling TCP packet injection by an at
CVE

CVE-2026-40434

Anviz CrossChex Standard lacks source verification in the client/server channel, enabling TCP packet injection by an at

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.

HIGH · CVSS 8.1 EPSS 0.0004
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-940Improper Verification of Source of a Communication Channel
▤

Affected Products & Versions

1
anviz crosschex standardall versions
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.1 · ics-cert@hq.dhs.gov
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Apr 2026 · 08:16 PM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-OT-white-2026-icsa-26-106-03
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-106-03.jsonThird Party Advisory
https://www.anviz.com/contact-us.htmlProduct
https://www.cisa.gov/news-events/ics-advisories/icsa-26-106-03US Government Resource
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