CVE-2024-4491

8.8 highEPSS 1.5%

High (8.8) in tenda i21 firmware. EPSS 1.5% chance of exploitation in the next 30 days.

A vulnerability classified as critical was found in Tenda i21 1.0.0.14(4656). This vulnerability affects the function formGetDiagnoseInfo. The manipulation of the argument cmdinput leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-263080. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.5% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
CWEs: CWE-787, CWE-121
Published: 2024-05-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tenda:i21_firmware

References

https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formGetDiagnoseInfo.md
https://vuldb.com/?ctiid.263080
https://vuldb.com/?id.263080
https://vuldb.com/?submit.323600
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/i/i21/formGetDiagnoseInfo.md

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