VulnerabilityAnalyzed
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.
HIGH 8.1EPSS 0.23%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-940
- Affected
- anviz/crosschex standard
- Source
- ics-cert@hq.dhs.gov
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.