PatchTheCVECVE-2026-78414: Cross-site scripting in the Web Administration interface of Network Optix Nx Witness VMS before version 6.1.3
CVE-2026-78414 is a high-severity flaw (CVSS 8.0) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Cross-site scripting in the Web Administration interface of Network Optix Nx Witness VMS before version 6.1.3 on Linux, Windows and MacOS allows an adjacent-network attacker to execute arbitrary JavaScript in the browser of an authenticated administrator and steal the administrator's session token, resulting in Administrator Account Takeover. An attacker who controls an Nx server on the same network segment can set that server's site name to a sc
Why this priority
- High severity
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 8.0 (High) |
| Attack vector | Adjacent network |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.3% (top 73%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2026-08-24 |
| Last modified | 2026-10-12 |
Last updated 2026-10-12 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-78414?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-78414 being exploited?
CVE-2026-78414 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-78414 affect?
CVE-2026-78414 affects affected software. Severity is high (CVSS 8.0). Cross-site scripting in the Web Administration interface of Network Optix Nx Witness VMS before version 6.1.3 on Linux, Windows and MacOS allows an adjacent-network attacker to execute arbitrary JavaScript in the browser of an authenticated
How urgent is CVE-2026-78414?
Priority 35/100. High severity
Software pages
Windows vulnerabilities · macOS vulnerabilities