Quick answers
- Is CVE-2026-77541 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-77541 being exploited in the wild.
- How severe is CVE-2026-77541?
- Critical severity, with a CVSS score of 9.1, published 26 August 2026.
- Which products and versions are affected?
- Ubiquiti UniFi Network Application <UNKNOWN>.
- Is there a fix for CVE-2026-77541?
- 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-2026-77541 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-77541?
- Check whether you run Ubiquiti UniFi Network Application at an affected version. 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 Network Application that allows privilege escalation. The attack requires network access and high privileges within the application, indicating this is not an unauthenticated remote exploit but rather a post-compromise lateral movement or privilege escalation vector. An attacker with these preconditions can escalate privileges to gain higher-level access within the UniFi Network Application. A fix is available in security updates from Ubiquiti; organizations should apply patches immediately to prevent privilege escalation attacks.
Affected products
- Ubiquiti UniFi Network Application <UNKNOWN>
Timeline
- 2026-08-26: disclosed
- 2026-08-26: advisory