CVE-2024-4495: Tenda i21 formWifiMacFilterGet stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-05 · updated 2026-06-17
Weakness: CWE-121

Description

A vulnerability was found in Tenda i21 1.0.0.14(4656) and classified as critical. Affected by this issue is the function formWifiMacFilterGet. The manipulation of the argument index leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-263084. 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/formWifiMacFilterGet.md
https://vuldb.com/?ctiid.263084
https://vuldb.com/?id.263084
https://vuldb.com/?submit.323605
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formWifiMacFilterGet.md
https://vuldb.com/?ctiid.263084
https://vuldb.com/?id.263084
https://vuldb.com/?submit.323605

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