High severity · published Feb 27, 2026
CVE-2026-3275
Tenda F453 httpd addressNat fromAddressNat buffer overflow
8.8
CVSS
0.9%
EPSS
No
On KEV
Description
A weakness has been identified in Tenda F453 1.0.0.3. This affects the function fromAddressNat of the file /goform/addressNat of the component httpd. Executing a manipulation of the argument entrys can lead to buffer overflow. The attack may be performed from remote. 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)0.9% · higher than 58% 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-2026-3275
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-3275
Exploit
https://github.com/Litengzheng/vul_db/blob/main/F453/vul_75/README.md
Permissions Required
https://vuldb.com/?ctiid.347999
Third Party Advisory
https://vuldb.com/?id.347999
Third Party Advisory
https://vuldb.com/?submit.759622
Product
https://www.tenda.com.cn/
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