Anviz CrossChex Standard Improper Verification of Source of a Communication Channel

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Summary

CVECVE-2026-40434
StatePUBLISHED
Assignericscert
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-17 20:16:36 UTC
Updated2026-04-17 20:16:36 UTC
DescriptionAnviz 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.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Problem Types: CWE-940 | CWE-940 CWE-940

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
3.1CNACVSS8.1HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Anviz Anviz CrossChex Standard affected All versions Not specified

References

ReferenceSourceLinkTags
www.cisa.gov/news-events/ics-advisories/icsa-26-106-03 [email protected] www.cisa.gov
github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-10... [email protected] github.com
www.anviz.com/contact-us.html [email protected] www.anviz.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Workarounds

CNA: Anviz did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Anviz for more information at https://www.anviz.com/contact-us.html.

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