CVE•Published 2026-04-17•Modified 2026-05-04•1 article on news•5 live references•NVD data
CVE-2026-40434Anviz · Crosschex_standard
Vulnerability data via NVD (ingested)
CVSS v3.1
8.1
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS percentile
7
Exploit Prediction Scoring System · top 93% of all CVEs
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.
Timeline
Published 2026-04-17
Modified 2026-05-04
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-40434Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Anviz Crosschex Standard"All exposed Anviz Crosschex Standard instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Crosschex Standard"HTTP body or banner mentions "Crosschex Standard" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-40434Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-40434Censys host search filtered to this CVE id.
grep.app
CVE-2026-40434Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-40434GitHub code search for direct mentions.
Google dork
"CVE-2026-40434" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-40434 on GitHub.