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7.4
Tenda F451 Router Can Crash from Malicious Email Filter Input
CVE-2026-5990
Summary
A bug in the Tenda F451 router's email filter can cause the device to crash if it receives a specially crafted email. This can happen remotely, and exploit code is now publicly available. Update your router's software to fix this issue.
Original title
A vulnerability has been found in Tenda F451 1.0.0.7. Affected by this vulnerability is the function fromSafeEmailFilter of the file /goform/SafeEmailFilter. The manipulation of the argument page l...
Original description
A vulnerability has been found in Tenda F451 1.0.0.7. Affected by this vulnerability is the function fromSafeEmailFilter of the file /goform/SafeEmailFilter. The manipulation of the argument page leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may 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: 10 Apr 2026 · Updated: 10 Apr 2026 · First seen: 10 Apr 2026