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CRITICAL

CVE-2026-9455

CVSS v3

9.8

CRITICAL

EPSS Score

1.9 %

exploit probability

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument FileName leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

Technical details

CVSS v3 Vector
3.1
Published
2026-05-25
Last Modified
2026-07-23

Frequently asked questions

What is CVE-2026-9455?

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument FileName leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

Is CVE-2026-9455 actively exploited?

Active exploitation of CVE-2026-9455 has not been confirmed. The EPSS score is 1.9%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-9455?

CVE-2026-9455 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string 3.1.

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