Buffer overflow in Tenda Hg10
CVE-2026-6988
A flaw has been found in Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon. This issue affects the function formRoute of the file /boaform/formRouting of the component Boa Service. This manipulation of the argument nextHop causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been published 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: 0.010 (62.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.010 · change: +0.004
Affected products
- Tenda Hg10 — versions HG7_HG9_HG10re_300001138_en_xpon
- Tenda Hg10 Firmware — versions 300001138
Weakness classification (CWE)
References
- vuldb.com/vuln/359540 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/359540/cti (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/submit/796427 (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/xyh4ck/iot_poc/blob/main/Tenda/HG10/01_Buffer_Overflow_nextHop/READM… (Exploit, Third Party Advisory, exploit)
- www.tenda.com.cn/ (Product, product)
Frequently asked questions
- What is CVE-2026-6988?
- CVE-2026-6988 is a high-severity vulnerability in Tenda Hg10, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-04-25.
- How severe is CVE-2026-6988?
- High severity. CVSS v3 base score is 8.8 out of 10.