CVE-2025-9091

low-risk
Published 2025-08-17

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.

Do I need to act?

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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
2
CVSS 2.5/10 Low
LOCAL / HIGH complexity

Affected Products (1)

Affected Vendors

Tenda

References (8)

Exploit https://github.com/ZZ2266/.github.io/blob/main/AC20/hardcoded%20password/readme....
Exploit https://github.com/ZZ2266/.github.io/tree/main/AC20/hardcoded%20password/readme....
Permissions Required https://vuldb.com/?ctiid.320359
Third Party Advisory https://vuldb.com/?id.320359
Third Party Advisory https://vuldb.com/?submit.632268
Product https://www.tenda.com.cn/
Exploit https://github.com/ZZ2266/.github.io/blob/main/AC20/hardcoded%20password/readme....
Exploit https://github.com/ZZ2266/.github.io/blob/main/AC20/hardcoded%20password/readme....
11
/ 100
low-risk
Severity 6/34 · Minimal
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal