Critical severity · published May 11, 2026
CVE-2026-8263
Tenda AC6 httpd WifiExtraSet fromSetWirelessRepeat os command injection
9.8
CVSS
5%
EPSS
No
On KEV
Description
A security flaw has been discovered in Tenda AC6 15.03.06.49_multi_TDE01. Affected is the function fromSetWirelessRepeat of the file /goform/WifiExtraSet of the component httpd. Performing a manipulation of the argument mac/ssid results in os command injection. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.0% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
AC6 · Tenda
15.03.06.49_multi_TDE01 · source: vendor
AF
Ac10u Firmware · Tenda
15.03.06.49_multi_tde01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8263
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8263
Exploit
https://github.com/yaoyue123/iot/blob/main/Tenda/AC10U/fromSetWirelessRepeat.md
Third Party Advisory
https://vuldb.com/submit/810074
Third Party Advisory
https://vuldb.com/vuln/362560
Permissions Required
https://vuldb.com/vuln/362560/cti
Product
https://www.tenda.com.cn/
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