CVE-2026-77542Network attack vector

Privileged command execution via improper input validation

Published Aug 26, 2026 · Updated Aug 26, 2026

Command injection in Ubiquiti UID Enterprise Agent before 1.62.1 allows remote authenticated users to execute commands on the host device. Ubiquiti attributes the flaw to improper input validation but does not disclose the affected endpoint, parameter, or command-construction path. Exploitation requires network access and a high-privilege account; successful commands can affect host data and service operation.

CVSS severity9.1
Critical
EPSS probability0.81%
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 Ubiquiti UID Enterprise Agent before 1.62.1 allows remote authenticated users to execute commands on the host device. Ubiquiti attributes the flaw to improper input validation but does not disclose the affected endpoint, parameter, or command-construction path. Exploitation requires network access and a high-privilege account; successful commands can affect host data and service operation.

The record

CVE
CVE-2026-77542
Published
Aug 26, 2026
Updated
Aug 26, 2026
Vendor
Ubiquiti Inc.
Product
UID Enterprise Agent
Classifications
CWE-20, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2026Record 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=0 <1.62.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Ubiquiti Inc. · UID Enterprise Agentversion=0 <1.62.1

Published CVSS scores

9.1UbiquitiCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
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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