CVE-2026-77539
Critical · 9.1CVSS
9.1
EPSS
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Published
Aug 26, 2026
CISA due date
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The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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