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HIGH

CVE-2026-91853

CVSS v3

7.4

HIGH

EPSS Score

1.4 %

exploit probability

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability has been found in TOTOLINK X5000R 9.1.0cu.2089_B20211224. The impacted element is the function exportOvpn of the file /cgi-bin/cstecgi.cgi?action=exportOvpn&type=user of the component Export Ovpn Handler. The manipulation of the argument filetype leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Technical details

CVSS v3 Vector
3.1
Published
2026-09-15
Last Modified
2026-09-16

Frequently asked questions

What is CVE-2026-91853?

A vulnerability has been found in TOTOLINK X5000R 9.1.0cu.2089_B20211224. The impacted element is the function exportOvpn of the file /cgi-bin/cstecgi.cgi?action=exportOvpn&type=user of the component Export Ovpn Handler. The manipulation of the argument filetype leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Is CVE-2026-91853 actively exploited?

Active exploitation of CVE-2026-91853 has not been confirmed. The EPSS score is 1.4%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-91853?

CVE-2026-91853 has a CVSS v3 base score of 7.4 (HIGH severity), with vector string 3.1.

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