High severity · published Feb 22, 2026
CVE-2026-2911
Tenda FH451 GstDhcpSetSer buffer overflow
8.8
CVSS
3.5%
EPSS
No
On KEV
Description
A vulnerability has been found in Tenda FH451 up to 1.0.0.9. This issue affects some unknown processing of the file /goform/GstDhcpSetSer. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public 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)3.5% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FH
FH451 · Tenda
1.0.0.0; 1.0.0.1; 1.0.0.2; 1.0.0.3; 1.0.0.4; 1.0.0.5; +4 more · source: vendor
FF
Fh451 Firmware · Tenda
1.0.0.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2911
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2911
Permissions Required
https://vuldb.com/?ctiid.347220
Third Party Advisory
https://vuldb.com/?id.347220
Third Party Advisory
https://vuldb.com/?submit.755218
Exploit
https://vuln.ricky.place/Tenda/FH451/
Product
https://www.tenda.com.cn/