CVE-2024-4249: Tenda i21 wifiSSIDget formwrlSSIDget stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-04-27 · updated 2026-06-17
Weakness: CWE-121

Description

A vulnerability was found in Tenda i21 1.0.0.14(4656). It has been classified as critical. Affected is the function formwrlSSIDget of the file /goform/wifiSSIDget. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-262140. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

Tenda i21: 1.0.0.14(4656)

References

https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formwrlSSIDget.md
https://vuldb.com/?ctiid.262140
https://vuldb.com/?id.262140
https://vuldb.com/?submit.319834
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formwrlSSIDget.md
https://vuldb.com/?ctiid.262140
https://vuldb.com/?id.262140
https://vuldb.com/?submit.319834

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