CVE-2025-9091

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.

CVSS v3 2.5 LOW
CVSS v2.0 1.0 LOW

2.5^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.0 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

1.0^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:H/Au:S/C:P/I:N/A:N

Exploitability : 1.5 / Impact : 2.9

Access Vector LOCAL

Access Complexity HIGH

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/ZZ2266/.github.io/blob/main/AC20/hardcoded%20password/readme.md#description	Exploit Third Party Advisory
https://github.com/ZZ2266/.github.io/tree/main/AC20/hardcoded%20password/readme.md	Exploit Third Party Advisory
https://vuldb.com/?ctiid.320359	Permissions Required VDB Entry
https://vuldb.com/?id.320359	Third Party Advisory VDB Entry
https://vuldb.com/?submit.632268	Third Party Advisory VDB Entry
https://www.tenda.com.cn/	Product
https://github.com/ZZ2266/.github.io/blob/main/AC20/hardcoded%20password/readme.md	Exploit Third Party Advisory
https://github.com/ZZ2266/.github.io/blob/main/AC20/hardcoded%20password/readme.md#description	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ac20_firmware:16.03.08.12:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac20:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-08-17 03:15

Updated : 2025-08-21 16:10

NVD link : CVE-2025-9091

Mitre link : CVE-2025-9091

CVE.ORG link : CVE-2025-9091

JSON object : View

Products Affected

tenda

ac20
ac20_firmware

CWE

CWE-259

Use of Hard-coded Password

CWE-798

Use of Hard-coded Credentials

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