High severity · published Apr 26, 2026
CVE-2026-7057
Tenda F456 httpd setcfm buffer overflow
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
A flaw has been found in Tenda F456 1.0.0.5. The affected element is an unknown function of the file /goform/setcfm of the component httpd. This manipulation of the argument funcname/funcpara1 causes buffer overflow. It is possible to initiate the attack 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
F4
F456 · Tenda
1.0.0.5 · source: vendor
FF
F456 Firmware · Tenda
1.0.0.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7057
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7057
Exploit
https://github.com/Litengzheng/vuldb_new/blob/main/F456/vul_128/README.md
Third Party Advisory
https://vuldb.com/submit/798459
Third Party Advisory
https://vuldb.com/vuln/359630
Permissions Required
https://vuldb.com/vuln/359630/cti
Product
https://www.tenda.com.cn/
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