CVE-2025-12611
High
Description
A vulnerability was identified in Tenda AC21 16.03.08.16. This vulnerability affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg. The manipulation of the argument startIp leads to buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
SeverityHigh
CVSS8.8
Exploit probability—
ProductTenda Ac21 Firmware
PublishedNov 3, 2025
First seenNov 3, 2025
Weakness typeCWE-120CWE-120CWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| tenda ac21_firmware | 16.03.08.16 | — |
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