A vulnerability identified as CVE-2026-77551 has been discovered in UniFi Connect Display Cast Pro. The flaw is classified as an Improper Access Control vulnerability that allows a network-adjacent malicious actor to escalate privileges on the affected device under certain conditions. The vulnerability requires network access to exploit. Ubiquiti has published a security advisory bulletin regarding this issue. The vulnerability poses a high risk as privilege escalation can lead to full device compromise. Users of UniFi Connect Display Cast Pro are advised to apply patches or mitigations as recommended by the vendor.
