Buffer overflow in Tenda Ac9
CVE-2026-2192
A security vulnerability has been detected in Tenda AC9 15.03.06.42_multi. Affected by this vulnerability is the function formGetRebootTimer. Such manipulation of the argument sys.schedulereboot.start_time/sys.schedulereboot.end_time leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.4% 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 Ac9 — versions 15.03.06.42_multi
- Tenda Ac9 Firmware — versions 5.03.06.42_multi
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/glkfc/IoT-Vulnerability/blob/main/Tenda/tenda4.md (Exploit, Third Party Advisory, exploit)
- www.tenda.com.cn/ (Product, product)
Frequently asked questions
- What is CVE-2026-2192?
- CVE-2026-2192 is a high-severity vulnerability in Tenda Ac9, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.2/10. Published 2026-02-08.
- How severe is CVE-2026-2192?
- High severity. CVSS v3 base score is 7.2 out of 10.