High severity · published Apr 5, 2026
CVE-2026-5567
Tenda M3 Destination setAdvPolicyData buffer overflow
8.8
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
M3
M3 · Tenda
1.0.0.10 · source: vendor
MF
M3 Firmware · Tenda
1.0.0.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5567
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5567
Exploit
https://github.com/Moxxkidd/CVE/issues/2
Third Party Advisory
https://vuldb.com/submit/782999
Third Party Advisory
https://vuldb.com/vuln/355337
Permissions Required
https://vuldb.com/vuln/355337/cti
Product
https://www.tenda.com.cn/
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