High severity · published Feb 27, 2026
CVE-2026-3274
Tenda F453 httpd L7Prot frmL7ProtForm buffer overflow
8.8
CVSS
1%
EPSS
No
On KEV
Description
A security flaw has been discovered in Tenda F453 1.0.0.3. Affected by this issue is the function frmL7ProtForm of the file /goform/L7Prot of the component httpd. Performing a manipulation of the argument page results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may 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)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
F4
F453 · Tenda
1.0.0.3 · source: vendor
FF
F453 Firmware · Tenda
1.0.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-3274
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3274
Exploit
https://github.com/Litengzheng/vul_db/blob/main/F453/vul_74/README.md
Permissions Required
https://vuldb.com/?ctiid.347998
Third Party Advisory
https://vuldb.com/?id.347998
Third Party Advisory
https://vuldb.com/?submit.759621
Product
https://www.tenda.com.cn/
More from F453
9.8
CVE-2026-3271
Tenda F453 httpd P2pListFilterof fromP2pListFilter buffer overflow
8.8
CVE-2026-6989
Tenda F453 Telnet Service telnet TendaTelnet command injection
8.8
CVE-2026-5021
Tenda F453 httpd PPTPUserSetting fromPPTPUserSetting stack-based overflow
8.8
CVE-2026-4554
Tenda F453 WriteFacMac FormWriteFacMac privilege escalation
8.8
CVE-2026-4553
Tenda F453 Parameters Natlimit fromNatlimit stack-based overflow