Vulnerability in Tenda Ac20
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.
EPSS: 0.002 (12.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Tenda Ac20 — versions 16.03.08.12
- Tenda Ac20_firmware — versions 16.03.08.12
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (related, Exploit, Third Party Advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-9091?
- CVE-2025-9091 is a low-severity vulnerability in Tenda Ac20, classified under Use of Hard-coded Password. CVSS score: 2.5/10. Published 2025-08-17.
- How severe is CVE-2025-9091?
- Low severity. CVSS v3 base score is 2.5 out of 10.
- Is CVE-2025-9091 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.