High severity · published Apr 13, 2026
CVE-2026-6199
Tenda F456 qossetting fromqossetting stack-based overflow
8.8
CVSS
0.5%
EPSS
No
On KEV
Description
A vulnerability was found in Tenda F456 1.0.0.5. Impacted is the function fromqossetting of the file /goform/qossetting. The manipulation of the argument page results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could 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)0.5% · higher than 41% 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
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6199
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6199
github.com
https://github.com/Litengzheng/vuldb_new/blob/main/F456/vul_116/README.md
vuldb.com
https://vuldb.com/submit/797471
vuldb.com
https://vuldb.com/vuln/357121
vuldb.com
https://vuldb.com/vuln/357121/cti
www.tenda.com.cn
https://www.tenda.com.cn/
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