Buffer overflow in Tenda Hg10
CVE-2026-11499
A vulnerability was determined in Tenda HG7HG9 and HG10 300001138_en_xpon. This affects the function formDOMAINBLK of the file /boaform/formDOMAINBLK. Executing a manipulation of the argument blkDomain can lead to stack-based buffer overflow. The attack may be performed from remote.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.066 (93.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.066 · newest: 0.066 · change: 0.000
Affected products
- Tenda Hg10 — versions 300001138_en_xpon
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/ssaaaa1234/Tenda-HG10-formDOMAINBLK-stack-overflow-2 (broken-link)
- vuldb.com/cve/CVE-2026-11499 (third-party-advisory)
- vuldb.com/submit/834888 (third-party-advisory)
- vuldb.com/vuln/369119 (technical-description, vdb-entry)
- vuldb.com/vuln/369119/cti (signature, permissions-required)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-11499?
- CVE-2026-11499 is a critical-severity vulnerability in Tenda Hg10, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2026-06-08.
- How severe is CVE-2026-11499?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2026-11499 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.