What is CVE-2026-10056?

CVE-2026-10056 is a high-severity vulnerability in Network Optix Nx Witness Vms, classified under Permissive Cross-domain Policy with Untrusted Domains. CVSS score: 7.5/10. Published 2026-05-29.

How severe is CVE-2026-10056?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Network Optix Nx Witness Vms

CVE-2026-10056

CORS misconfiguration in the REST API of Network Optix Nx Witness VMS before version 6.1.2, when running in the default Standard security mode, on Linux and Windows allows an unauthenticated remote attacker to steal the session token of an…

EPSS: 0.001 (24.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Network Optix Nx Witness Vms — versions 0

Weakness classification (CWE)

CWE-942 — Permissive Cross-domain Policy with Untrusted Domains

References

96d4e157-0bf0-48b3-8efd-382c68caf4e0 (vendor-advisory)

Frequently asked questions

What is CVE-2026-10056?: CVE-2026-10056 is a high-severity vulnerability in Network Optix Nx Witness Vms, classified under Permissive Cross-domain Policy with Untrusted Domains. CVSS score: 7.5/10. Published 2026-05-29.
How severe is CVE-2026-10056?: High severity. CVSS v3 base score is 7.5 out of 10.