Buffer overflow in Tenda Ac1206
CVE-2026-19788
A vulnerability was found in Tenda AC1206 15.03.06.23_multi_TD01. This affects the function set_device_name of the file /goform/SetOnlineDevName of the component httpd web management interface. The manipulation of the argument devName results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been made public and could 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: 0.009 (56.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.009 · change: +0.004
Affected products
- Tenda Ac1206 — versions 15.03.06.23_multi_TD01
Weakness classification (CWE)
References
- vuldb.com/vuln/389755 (technical-description, vdb-entry)
- vuldb.com/vuln/389755/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-19788 (third-party-advisory)
- vuldb.com/submit/868913 (third-party-advisory)
- github.com/lipenghai/iot_bug/blob/main/Tenda/AC12/1.md (exploit)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-19788?
- CVE-2026-19788 is a high-severity vulnerability in Tenda Ac1206, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-08-14.
- How severe is CVE-2026-19788?
- High severity. CVSS v3 base score is 8.8 out of 10.