PatchTheCVECVE-2026-54405: A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in
CVE-2026-54405 is a high-severity flaw (CVSS 7.5) affecting unifi network application. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi Network Application to execute a Denial of Service (DoS) attack on the application.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 56%) |
| CISA exploited list | No |
| Weakness | CWE-20 |
| Published | 2026-07-02 |
| Last modified | 2026-10-25 |
Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
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-2026-54405?
unifi network application: upgrade to 10.4.57. Exact commands for each OS are on this page.
Is CVE-2026-54405 being exploited?
CVE-2026-54405 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-2026-54405 affect?
CVE-2026-54405 affects unifi network application. Severity is high (CVSS 7.5). A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi Network Application to execute a Denial of Service (DoS) attack on the application.
How urgent is CVE-2026-54405?
Priority 42/100. High severity; Remotely exploitable, no login, no user action
Software pages
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