CVE-2026-7240: Totolink A8000RU CGI cstecgi.cgi setVpnAccountCfg os command injection

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-28 · updated 2026-10-26
Weakness: CWE-77

Description

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setVpnAccountCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument User leads to os command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.

Affected products

Totolink A8000RU: 7.1cu.643_b20200521

References

https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_324/README.md
https://vuldb.com/submit/802845
https://vuldb.com/vuln/359847
https://vuldb.com/vuln/359847/cti
https://www.totolink.net/

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