CVE-2021-45989

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function guestWifiRuleRefresh. This vulnerability allows attackers to cause a Denial of Service (DoS) via the qosGuestUpstream and qosGuestDownstream parameters.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Feb 4, 2022
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-45989: High severity, CVSS 7.5 | Vulnix