Quick answers
- Is CVE-2026-77551 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-77551 being exploited in the wild.
- How severe is CVE-2026-77551?
- Critical severity, with a CVSS score of 9, published 26 August 2026.
- Which products and versions are affected?
- Ubiquiti UniFi Connect Display Cast Pro.
- Is there a fix for CVE-2026-77551?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-77551 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-77551?
- Check whether you run Ubiquiti UniFi Connect Display Cast Pro. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is an improper access control flaw in UniFi Connect Display Cast Pro that permits privilege escalation under specific network conditions. An attacker with network access can exploit this vulnerability to elevate their privileges on the affected device. No authentication bypass or additional user interaction is required. Successful exploitation allows the attacker to gain administrative control of the device. Patches or mitigations should be available from Ubiquiti via their security advisory.
Affected products
- Ubiquiti UniFi Connect Display Cast Pro
Timeline
- 2026-08-26: disclosed