CVE-2026-77540: Ubiquiti Inc UniFi OS Server vulnerability
Ubiquiti Inc · UniFi OS Server
Vendor fix available · Affected: Ubiquiti Inc UniFi OS Server · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 70% of scored CVEs
DescriptionCVE.org
A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS Server to execute a Command Injection on the host device.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Ubiquiti Inc · UniFi OS Serverbefore 5.1.37
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Ubiquiti Inc
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-77540 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.