PatchTheCVECVE-2026-56842: A malicious actor with access to the network and under certain conditions could exploit an Incorrect Authoriza
CVE-2026-56842 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 and under certain conditions could exploit an Incorrect Authorization vulnerability found in UniFi Network Application to persist privileges within UniFi Network Application after such access had been removed.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 70%) |
| CISA exploited list | No |
| Weakness | CWE-863 |
| 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-2026-56842?
unifi network application: upgrade to 10.4.57. Exact commands for each OS are on this page.
Is CVE-2026-56842 being exploited?
CVE-2026-56842 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-2026-56842 affect?
CVE-2026-56842 affects unifi network application. Severity is high (CVSS 7.5). A malicious actor with access to the network and under certain conditions could exploit an Incorrect Authorization vulnerability found in UniFi Network Application to persist privileges within UniFi Network Application after such access had
How urgent is CVE-2026-56842?
Priority 34/100. High severity
Software pages
Related CVEs
- CVE-2026-54405 HIGH 7.5 UPGRADE A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in
- CVE-2026-54406 HIGH 8.7 UPGRADE A malicious actor with access to the network and high privileges could exploit a Path Traversal vulnerability
- CVE-2026-55114 HIGH 8.8 UPGRADE A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulne
- CVE-2026-55118 HIGH 8.3 UPGRADE A malicious actor with access to the network,low privileges and under certain conditions could exploit an Impr