High severity · published Apr 27, 2026
CVE-2026-7099
Tenda F456 httpd QuickIndex formQuickIndex buffer overflow
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
A vulnerability was detected in Tenda F456 1.0.0.5. The affected element is the function formQuickIndex of the file /goform/QuickIndex of the component httpd. Performing a manipulation of the argument mit_linktype results in buffer overflow. The attack may be initiated remotely. The exploit is now 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)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-2026-7099
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7099
Exploit
https://github.com/Litengzheng/vuldb_new/blob/main/F456/vul_137/README.md
Third Party Advisory
https://vuldb.com/submit/798472
Third Party Advisory
https://vuldb.com/vuln/359674
Permissions Required
https://vuldb.com/vuln/359674/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-2026-7098
Tenda F456 httpd DhcpListClient fromDhcpListClient buffer overflow
8.8
CVE-2026-7097
Tenda F456 httpd webExcptypemanFilter fromwebExcptypemanFilter buffer overflow