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7.4
Tenda F453 Router: Remote Attack via Overflow
CVE-2026-3275
Summary
A security weakness in the Tenda F453 router's NAT function allows an attacker to cause a buffer overflow from a remote location, potentially leading to unauthorized access. This issue has been made public, so we recommend updating to a new version of the router to prevent exploitation. Immediate action is not strictly necessary, but it's a good idea to stay up to date with software updates.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| tenda | f453_firmware | 1.0.0.3 | – |
Original title
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...
Original 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.
nvd CVSS2.0
9.0
nvd CVSS3.1
8.8
nvd CVSS4.0
7.4
Vulnerability type
CWE-119
Buffer Overflow
CWE-120
Classic Buffer Overflow
- https://github.com/Litengzheng/vul_db/blob/main/F453/vul_75/README.md Exploit Third Party Advisory
- https://vuldb.com/?ctiid.347999 Permissions Required VDB Entry
- https://vuldb.com/?id.347999 Third Party Advisory VDB Entry
- https://vuldb.com/?submit.759622 Third Party Advisory VDB Entry
- https://www.tenda.com.cn/ Product
Published: 27 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026