High severity · published Apr 27, 2026
CVE-2026-7079
Tenda F456 httpd AdvSetWan fromAdvSetWan buffer overflow
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
A weakness has been identified in Tenda F456 1.0.0.5. This affects the function fromAdvSetWan of the file /goform/AdvSetWan of the component httpd. This manipulation of the argument wanmode causes buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.
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-2026-7079
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7079
Exploit
https://github.com/Litengzheng/vuldb_new/blob/main/F456/vul_130/README.md
Third Party Advisory
https://vuldb.com/submit/798461
Third Party Advisory
https://vuldb.com/vuln/359654
Permissions Required
https://vuldb.com/vuln/359654/cti
Product
https://www.tenda.com.cn/
More from F456
8.8
CVE-2026-7102
Tenda F456 httpd WriteFacMac FromWriteFacMac command injection
8.8
CVE-2026-7101
Tenda F456 httpd WrlclientSet fromWrlclientSet buffer overflow
8.8
CVE-2026-7100
Tenda F456 httpd Natlimit fromNatlimitof buffer overflow
8.8
CVE-2026-7099
Tenda F456 httpd QuickIndex formQuickIndex buffer overflow
8.8
CVE-2026-7098
Tenda F456 httpd DhcpListClient fromDhcpListClient buffer overflow