Buffer overflow in Tenda Ac20
CVE-2025-13258
A vulnerability was detected in Tenda AC20 up to 16.03.08.12. The impacted element is an unknown function of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto results in buffer overflow. The attack can be launched remotely. The exploit is now public and may be used.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (52.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Tenda Ac20 — versions 16.03.08.0, 16.03.08.1, 16.03.08.2
- Tenda Ac20 Firmware — versions 16.03.08.12
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/DavCloudz/cve/blob/main/Tenda/Tengda AC20 Router WifiExtraSet Buffer… (related, Exploit, Third Party Advisory)
- github.com/DavCloudz/cve/blob/main/Tenda/Tengda AC20 Router WifiExtraSet Buffer… (Exploit, Third Party Advisory, exploit)
- www.tenda.com.cn/ (Product, product)
Frequently asked questions
- What is CVE-2025-13258?
- CVE-2025-13258 is a high-severity vulnerability in Tenda Ac20, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-11-17.
- How severe is CVE-2025-13258?
- High severity. CVSS v3 base score is 8.8 out of 10.