Vulnerability · Published Apr 5, 2026 · Assigned by VulDB
CVE-2026-5567Tenda M3 Destination setAdvPolicyData buffer overflow
High 8.8
In plain English
A high-severity buffer overflow in M3 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 48.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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 buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.
Affected products (as reported)
Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-355337 | Tenda M3 Destination setAdvPolicyData buffer overflow vdb-entry, technical-description
- VDB-355337 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #782999 | Tenda Tenda M3 Access Controller(M3) V1.0.0.10 Buffer Overflow third-party-advisory
- https://github.com/Moxxkidd/CVE/issues/2 exploit, issue-tracking
- https://www.tenda.com.cn/ product