CVE-2020-26728

moderate-risk
Published 2022-02-11

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.

Do I need to act?

~
3.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (2)

Affected Vendors

Tenda

References (6)

Broken Link https://github.com/Lyc-heng/Router/blob/main/Tenda/rce1.md
Exploit https://github.com/Lyc-heng/routers/blob/a80b30bccfc9b76f3a4868ff28ad5ce2e0fca18...
Exploit https://github.com/Lyc-heng/routers/blob/main/routers/rce1.md
Broken Link https://github.com/Lyc-heng/Router/blob/main/Tenda/rce1.md
Exploit https://github.com/Lyc-heng/routers/blob/a80b30bccfc9b76f3a4868ff28ad5ce2e0fca18...
Exploit https://github.com/Lyc-heng/routers/blob/main/routers/rce1.md
46
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 7/34 · Low
Exposure 7/34 · Low