CVE-2025-27212Network attack vector

Unauthenticated command execution via improper input validation

Published Aug 4, 2025 · Updated Aug 5, 2025

Command injection in six Ubiquiti UniFi Access device lines allows remote attackers on the management network to execute commands. Ubiquiti has not disclosed the affected endpoint, parameter, or the operation that fails to validate input before command execution. No credentials or user interaction are required after management-network access is obtained, enabling device-data access or alteration and interruption of access-control functions.

CVSS severity9.8
Critical
EPSS probability1.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in six Ubiquiti UniFi Access device lines allows remote attackers on the management network to execute commands. Ubiquiti has not disclosed the affected endpoint, parameter, or the operation that fails to validate input before command execution. No credentials or user interaction are required after management-network access is obtained, enabling device-data access or alteration and interruption of access-control functions.

The record

CVE
CVE-2025-27212
Published
Aug 4, 2025
Updated
Aug 5, 2025
Vendor
Ubiquiti Inc.
Product
UniFi Access G2 Reader Pro
Classifications
CWE-20, CWE-77, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1.11.23 <1.11.23

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ubiquiti Inc. · UniFi Access G2 Reader Proversion=1.11.23 <1.11.23
Ubiquiti Inc. · UniFi Access Reader Proversion=2.15.9 <2.15.9
Ubiquiti Inc. · UniFi Access G3 Reader Proversion=1.11.22 <1.11.22
Ubiquiti Inc. · UniFi Access G3 Intercomversion=1.8.22 <1.8.22
Ubiquiti Inc. · UniFi Access Intercomversion=1.8.22 <1.8.22
Ubiquiti Inc. · UniFi Access Intercom Viewerversion=1.4.39 <1.4.39

Published CVSS scores

9.8CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8UbiquitiCVSS:3.0/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

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

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Your stack

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