A security flaw has been discovered in Tenda AC20 16.03.08.12. Affected by this vulnerability is an unknown functionality of the file /etc_ro/shadow. The manipulation leads to hard-coded credentials. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.

Metrics

Attack Vector Local

Attack Complexity High

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Local

Access Complexity High

Authentication Single

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

AV:L/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Tenda
  • Ac20

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References
Link Providers
https://github.com/ZZ2266/.github.io/blob/main/AC20/hardcoded%20password/readme.md cve-icon cve-icon
https://github.com/ZZ2266/.github.io/blob/main/AC20/hardcoded%20password/readme.md#description cve-icon cve-icon cve-icon
https://github.com/ZZ2266/.github.io/tree/main/AC20/hardcoded%20password/readme.md cve-icon cve-icon
https://vuldb.com/?ctiid.320359 cve-icon cve-icon
https://vuldb.com/?id.320359 cve-icon cve-icon
https://vuldb.com/?submit.632268 cve-icon cve-icon
https://www.tenda.com.cn/ cve-icon cve-icon
History

Mon, 18 Aug 2025 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Tenda
Tenda ac20
Vendors & Products Tenda
Tenda ac20

Mon, 18 Aug 2025 14:15:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sun, 17 Aug 2025 02:45:00 +0000

Type Values Removed Values Added
Description A security flaw has been discovered in Tenda AC20 16.03.08.12. Affected by this vulnerability is an unknown functionality of the file /etc_ro/shadow. The manipulation leads to hard-coded credentials. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.
Title Tenda AC20 shadow hard-coded credentials
Weaknesses CWE-259
CWE-798
References
Metrics cvssV2_0

{'score': 1, 'vector': 'AV:L/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 2.5, 'vector': 'CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 2.5, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 2, 'vector': 'CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2025-08-17T02:32:09.136Z

Updated: 2025-08-18T13:15:19.094Z

Reserved: 2025-08-16T06:06:25.733Z

Link: CVE-2025-9091

cve-icon Vulnrichment

Updated: 2025-08-18T13:15:09.960Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-17T03:15:27.650

Modified: 2025-08-18T20:16:28.750

Link: CVE-2025-9091

cve-icon Redhat

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