CVE-2025-27216Network attack vector

Privilege escalation via undisclosed permission assignments

Published Aug 21, 2025 · Updated Aug 21, 2025

Incorrect resource permissions in Ubiquiti UISP Application 2.4.211 and earlier allow remote authenticated users to escalate privileges. Ubiquiti has not disclosed the affected resource, permission assignments, or operation that permits the escalation. Reachability requires existing low-level privileges over a network interface, and successful exploitation grants higher application privileges.

CVSS severity8.1
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Incorrect resource permissions in Ubiquiti UISP Application 2.4.211 and earlier allow remote authenticated users to escalate privileges. Ubiquiti has not disclosed the affected resource, permission assignments, or operation that permits the escalation. Reachability requires existing low-level privileges over a network interface, and successful exploitation grants higher application privileges.

The record

CVE
CVE-2025-27216
Published
Aug 21, 2025
Updated
Aug 21, 2025
Vendor
Ubiquiti Inc.
Product
UISP Application
Classifications
CWE-732, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.4.220 <2.4.220

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ubiquiti Inc. · UISP Applicationversion=2.4.220 <2.4.220

Published CVSS scores

8.1Ubiquiti Inc.CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
8.8CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo