Description
A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.
Published: 2026-09-22
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 29 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Ubiquiti
Ubiquiti cloud Gateways
Ubiquiti dream Machines
Ubiquiti dream Routers
Ubiquiti dream Wall
Ubiquiti enterprise Firewalls
Ubiquiti express
Ubiquiti express 7
Ubiquiti unifi Gateways
Vendors & Products Ubiquiti
Ubiquiti cloud Gateways
Ubiquiti dream Machines
Ubiquiti dream Routers
Ubiquiti dream Wall
Ubiquiti enterprise Firewalls
Ubiquiti express
Ubiquiti express 7
Ubiquiti unifi Gateways

Tue, 22 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 22 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
Description A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Ubiquiti Cloud Gateways Dream Machines Dream Routers Dream Wall Enterprise Firewalls Express Express 7 Unifi Gateways
cve-icon MITRE

Status: PUBLISHED

Assigner: Ubiquiti

Published:

Updated: 2026-09-22T19:32:56.582Z

Reserved: 2026-08-20T20:32:43.655Z

Link: CVE-2026-77555

cve-icon Vulnrichment

Updated: 2026-09-22T19:32:50.332Z

cve-icon NVD

Status : Deferred

Published: 2026-09-22T19:16:51.737

Modified: 2026-09-22T20:17:08.460

Link: CVE-2026-77555

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-29T13:21:05Z

Weaknesses