CVE-2023-47422Public exploit

Authentication bypass via static-resource substring matching

Published Feb 20, 2024 · Updated Aug 26, 2024

Improper access control in Tenda TX9, AX3, AX9, and AX12 firmware allows remote attackers to bypass web authentication using a crafted URL. R7WebsSecurityHandler in /usr/sbin/httpd uses substring matching for public static-resource names, so an appended query string makes any endpoint appear public. Management-interface access is sufficient on TX9 22.03.02.54, AX3 16.03.12.11, AX9 22.03.01.46, and AX12 22.03.01.46, exposing protected router functions without credentials.

CVSS severity8.8
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Tenda TX9, AX3, AX9, and AX12 firmware allows remote attackers to bypass web authentication using a crafted URL. R7WebsSecurityHandler in /usr/sbin/httpd uses substring matching for public static-resource names, so an appended query string makes any endpoint appear public. Management-interface access is sufficient on TX9 22.03.02.54, AX3 16.03.12.11, AX9 22.03.01.46, and AX12 22.03.01.46, exposing protected router functions without credentials.

The record

CVE
CVE-2023-47422
Published
Feb 20, 2024
Updated
Aug 26, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AX9 Firmware
Classifications
CWE-284, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 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=22.03.01.46

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AX9 Firmwareversion=22.03.01.46
Shenzhen Tenda Technology Co., Ltd. · TX9 Firmwareversion=22.03.02.54
Shenzhen Tenda Technology Co., Ltd. · AX3 Firmwareversion=16.03.12.11
Shenzhen Tenda Technology Co., Ltd. · AX12 Firmwareversion=22.03.01.46

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:A/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
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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