CRITICAL

CVE-2020-26728

CVSS v3

9.8

CRITICAL

EPSS Score

3.8 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2020-26728 yet.

Full record on NVD

Description

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.

Technical details

Published: 2022-02-11

Frequently asked questions

What is CVE-2020-26728?

Is CVE-2020-26728 actively exploited?

Active exploitation of CVE-2020-26728 has not been confirmed. Its EPSS score was 3.8% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-26728?

CVE-2020-26728 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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