Tenda M3 Destination setAdvPolicyData buffer overflow
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tenda | M3 | 1.0.0.10 | — | No fix listed | CNA |
- M3 VendorTenda Affected 1.0.0.10 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-5567
- 2026-10-03 Alias added: GHSA-jwvm-hq84-h9cj
References
More Tenda M3 Firmware vulnerabilities
- TI-2023-27928 Tenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function upgrade. CVSS 3.1CRITICAL 9.8
- TI-2025-13930 Tenda M3 exeCommand stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-13929 Tenda M3 setDhcpAP formSetRemoteDhcpForAp stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-13911 Tenda M3 setInternetLanInfo formSetRemoteInternetLanInfo heap-based overflow CVSS 4.0HIGH 8.7
- TI-2025-13910 Tenda M3 setAdInfoDetail formSetAdInfoDetails heap-based overflow CVSS 4.0HIGH 8.7
- TI-2025-13909 Tenda M3 setAdPushInfo formSetAdPushInfo stack-based overflow CVSS 4.0HIGH 8.7
Sources
- CVE-2026-5567 · CVE Program
- CVE-2026-5567 · NVD
- FIRST EPSS
- GHSA-jwvm-hq84-h9cj · GitHub Advisory Database · CC BY 4.0
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