What’s Vulnerable › Vulnerabilities

CVE-2026-40434: Anviz CrossChex Standard Improper Verification of Source of a Communication Channel

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-17 · updated 2026-10-26
• Weakness: CWE-940

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 CrossChex Standard: all versions

References

• 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

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