CVE-2026-1637: Tenda AC21 AdvSetMacMtuWan fromAdvSetMacMtuWan stack-based overflow
A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function fromAdvSetMacMtuWan of the file /goform/AdvSetMacMtuWan. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-1637?
CVE-2026-1637 is a high severity vulnerability due to the potential for remote exploitation through stack-based buffer overflow.
How do I fix CVE-2026-1637?
To fix CVE-2026-1637, update the Tenda AC21 firmware to the latest version provided by the vendor.
What type of attack is associated with CVE-2026-1637?
CVE-2026-1637 is associated with a remote code execution attack due to a stack-based buffer overflow.
What devices are affected by CVE-2026-1637?
The Tenda AC21 router is the affected device for CVE-2026-1637.
Can CVE-2026-1637 be exploited remotely?
Yes, CVE-2026-1637 can be exploited remotely without requiring physical access to the vulnerable device.