CVE-2021-45989

HIGH

Tenda routers G1-G3 v15.11.0.17(9502)_CN - Buffer Overflow

Title source: llm

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.

References (2)

Core 2

Core References

Broken Link x_refsource_misc

https://github.com/pjqwudi/my_vuln/blob/main/Tenda/vuln_4/4.md

Third Party Advisory

https://exchange.xforce.ibmcloud.com/vulnerabilities/218959

Scores

CVSS v3 7.5

EPSS 0.0108

EPSS Percentile 61.1%

Attack Vector NETWORK

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

Details

CWE

CWE-787

Status published

Products (2)

tendacn/g1_firmware 15.11.0.17\(9502\)_cn

tendacn/g3_firmware 15.11.0.17\(9502\)_cn

Published Feb 04, 2022

Tracked Since Feb 18, 2026