High severity · published Feb 22, 2026
CVE-2026-2905
Tenda HG9 Wireless Configuration Endpoint formWlanSetup stack-based overflow
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
A vulnerability was identified in Tenda HG9 300001138. This impacts an unknown function of the file /boaform/formWlanSetup of the component Wireless Configuration Endpoint. The manipulation of the argument ssid leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might 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 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HG
HG9 · Tenda
300001138 · source: vendor
HF
Hg9 Firmware · Tenda
300001138 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2905
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2905
Exploit
https://github.com/QIU-DIE/cve-nneeww/issues/7
Permissions Required
https://vuldb.com/?ctiid.347214
Third Party Advisory
https://vuldb.com/?id.347214
Third Party Advisory
https://vuldb.com/?submit.755167
Product
https://www.tenda.com.cn/
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