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7.4
Tenda F453 Router: Unsecured Password Input Can Cause Crash
CVE-2026-3727
Summary
A bug in the Tenda F453 router's password input field can cause it to crash, allowing an attacker to disrupt the router's functionality. This can happen when a malicious user sends a specially crafted password to the router. To stay secure, update the router's firmware to the latest version.
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 vulnerability was found in Tenda F453 1.0.0.3. This vulnerability affects the function sub_3C6C0 of the file /goform/QuickIndex. The manipulation of the argument mit_linktype/PPPOEPassword result...
Original description
A vulnerability was found in Tenda F453 1.0.0.3. This vulnerability affects the function sub_3C6C0 of the file /goform/QuickIndex. The manipulation of the argument mit_linktype/PPPOEPassword results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.
nvd CVSS2.0
9.0
nvd CVSS3.1
8.8
nvd CVSS4.0
7.4
Vulnerability type
CWE-119
Buffer Overflow
CWE-121
Stack-based Buffer Overflow
Published: 8 Mar 2026 · Updated: 13 Mar 2026 · First seen: 8 Mar 2026