CVE-2026-9384: Totolink A8000RU Web Management cstecgi.cgi setDiagnosisCfg os command injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-24 · updated 2026-07-23
Weakness: CWE-77

Description

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setDiagnosisCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument ip results in os command injection. The attack can be executed remotely. The exploit has been made public and could be used.

Affected products

Totolink A8000RU: 7.1cu.643_b20200521

References

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_331/README.md
https://vuldb.com/submit/813429
https://vuldb.com/vuln/365347
https://vuldb.com/vuln/365347/cti
https://www.totolink.net/

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