CVE-2024-37380

Network-traffic disclosure via incorrect VLAN forwarding

Published Jul 22, 2024 · Updated Nov 5, 2024

Improper VLAN traffic forwarding in Ubiquiti UniFi U6+ Access Point before 6.6.74 allows remote attackers to read network traffic. The meshing configuration forwards VLAN traffic to access points meshed through a U6+ without preserving the intended VLAN boundary. Exploitation requires adjacent-network reachability and a meshed U6+ topology; exposure is limited to confidentiality, with no reported data modification or service interruption.

CVSS severity5.3
Medium
EPSS probability0.21%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper VLAN traffic forwarding in Ubiquiti UniFi U6+ Access Point before 6.6.74 allows remote attackers to read network traffic. The meshing configuration forwards VLAN traffic to access points meshed through a U6+ without preserving the intended VLAN boundary. Exploitation requires adjacent-network reachability and a meshed U6+ topology; exposure is limited to confidentiality, with no reported data modification or service interruption.

The record

CVE
CVE-2024-37380
Published
Jul 22, 2024
Updated
Nov 5, 2024
Vendor
Ubiquiti
Product
UniFi U6+ Access Point
Classifications
T1040
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 5, 2024Record 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=6.6.74 <6.6.74

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Ubiquiti · UniFi U6+ Access Pointversion=6.6.74 <6.6.74

Published CVSS scores

5.3HackerOneCVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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 11, 2026Sep 17, 2026
Latest reporting daySep 17, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1040Network Sniffing

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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