Buffer overflow in Tenda M3
CVE-2026-5567
A flaw has been found in Tenda M3 1.0.0.10. This vulnerability affects the function setAdvPolicyData of the file /goform/setAdvPolicyData of the component Destination Handler. Executing a manipulation of the argument policyType can lead to…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (25.8th percentile) — read the EPSS interpretation.
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.
Affected products
- Tenda M3 — versions 1.0.0.10
- Tenda M3_firmware — versions 1.0.0.10
Weakness classification (CWE)
References
- VDB-355337 | Tenda M3 Destination setAdvPolicyData buffer overflow (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-355337 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #782999 | Tenda Tenda M3 Access Controller(M3) V1.0.0.10 Buffer Overflow (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-5567?
- CVE-2026-5567 is a high-severity vulnerability in Tenda M3, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-04-05.
- How severe is CVE-2026-5567?
- High severity. CVSS v3 base score is 8.8 out of 10.