Vulnerability in Anviz Crosschex Standard
CVE-2026-40434
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.001
Affected products
- Anviz Crosschex Standard — versions All versions
- Anviz Crosschex Standard
Weakness classification (CWE)
References
- github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-106-03.js… (Third Party Advisory)
- www.anviz.com/contact-us.html (Product)
- www.cisa.gov/news-events/ics-advisories/icsa-26-106-03 (US Government Resource)
Frequently asked questions
- What is CVE-2026-40434?
- CVE-2026-40434 is a high-severity vulnerability in Anviz Crosschex Standard, classified under Improper Verification of Source of a Communication Channel. CVSS score: 8.1/10. Published 2026-04-17.
- How severe is CVE-2026-40434?
- High severity. CVSS v3 base score is 8.1 out of 10.