Buffer overflow in Tenda Hg10
CVE-2026-82542
A weakness has been identified in Tenda HG10 300001138. Affected by this issue is the function formIPv6Routing of the file /boaform/admin/formIPv6Routing of the component Boa Web Server. This manipulation of the argument destNet causes buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (64.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.9% 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: 0.011 · change: +0.005
Affected products
- Tenda Hg10 — versions 300001138
Weakness classification (CWE)
References
- vuldb.com/vuln/397058 (technical-description, vdb-entry)
- vuldb.com/vuln/397058/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-82542 (third-party-advisory)
- vuldb.com/submit/888876 (third-party-advisory)
- github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/HG10/bof-for… (exploit)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-82542?
- CVE-2026-82542 is a critical-severity vulnerability in Tenda Hg10, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 10.0/10. Published 2026-08-30.
- How severe is CVE-2026-82542?
- Critical severity. CVSS v3 base score is 10.0 out of 10.