CVE-2026-67965Public exploitNetwork attack vector

Unauthenticated RCE via factory-test authentication exemption

Published Aug 17, 2026 · Updated Aug 18, 2026

Authentication bypass in Tenda W20E V5.0 16.01.0.6(2782) allows remote attackers to execute root-level code through the ATE service. The url_need_login function exempts /goform/ate when sys.admin.password is empty; the endpoint then starts /bin/ate, which accepts encrypted UDP commands under a hardcoded key. Factory-default devices have an empty administrator password; internet exploitation additionally requires WAN exposure of the management interface, and successful access permits NVRAM reads and system-command execution.

CVSS severity9.8
Critical
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Tenda W20E V5.0 16.01.0.6(2782) allows remote attackers to execute root-level code through the ATE service. The url_need_login function exempts /goform/ate when sys.admin.password is empty; the endpoint then starts /bin/ate, which accepts encrypted UDP commands under a hardcoded key. Factory-default devices have an empty administrator password; internet exploitation additionally requires WAN exposure of the management interface, and successful access permits NVRAM reads and system-command execution.

The record

CVE
CVE-2026-67965
Published
Aug 17, 2026
Updated
Aug 18, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 18, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

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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