9.8

CVE-2020-26728: tenda ac9_firmware

Modified
Published 11-02-2022Last modified 04-08-2024

Vulnerability summary

CVE-2020-26728 is a critical (CVSS 9.8) vulnerability in tenda ac9_firmware. EPSS estimates a 3.77% chance of exploitation in the next 30 days, higher than 89.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
3.77%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Timeline

  1. 11-02-2022
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

3.77%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.77% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Routers

    Maturity: poc

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Tenda1 product

1 vendor · 1 product

References

3 links