High severity · published Aug 26, 2026
CVE-2026-77538
A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Connect Application to escalate privileges within the UniFi…
8.2
CVSS
0.4%
EPSS
No
On KEV
Description
A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Connect Application to escalate privileges within the UniFi Connect Application.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UC
UniFi Connect Application · Ubiquiti Inc
before 3.24.22 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77538
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-77538
community.ui.com
https://community.ui.com/releases/Security-Advisory-Bulletin-067/fc4a3488-7c43-4628-8bab-f715e96dbfc9
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