CVE-2020-26728

A vulnerability was discovered in Tenda AC9 v3.0 V15.03.06.42_multi and Tenda AC9 V1.0 V15.03.05.19(6318)_CN which allows for remote code execution via shell metacharacters in the guestuser field to the __fastcall function with a POST request.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 86%
VendorProductVersion
tendaac9_firmware
15.03.06.42_multi:_multi
tendaac9_firmware
15.03.05.19\(6318\)_cn
𝑥
= Vulnerable software versions
References
https://github.com/Lyc-heng/Router/blob/main/Tenda/rce1.md
https://github.com/Lyc-heng/routers/blob/a80b30bccfc9b76f3a4868ff28ad5ce2e0fca180/routers/rce1.md
https://github.com/Lyc-heng/routers/blob/main/routers/rce1.md
https://github.com/Lyc-heng/Router/blob/main/Tenda/rce1.md
https://github.com/Lyc-heng/routers/blob/a80b30bccfc9b76f3a4868ff28ad5ce2e0fca180/routers/rce1.md
https://github.com/Lyc-heng/routers/blob/main/routers/rce1.md