# CVE-2026-91853

## Summary

- **CVE ID:** CVE-2026-91853
- **Severity:** MEDIUM
- **CVSS Score:** 7.4 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P)
- **CWE:** CWE-78, CWE-77
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 15, 2026

## 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.

## Affected Products

- TOTOLINK — X5000R (9.1.0cu.2089_B20211224)

## References

- [CNA](https://vuldb.com/vuln/404082)
- [CNA](https://vuldb.com/vuln/404082/cti)
- [CNA](https://vuldb.com/cve/CVE-2026-91853)
- [CNA](https://vuldb.com/submit/933810)
- [CNA](https://github.com/awigwu76/TOTOLINK_X5000R/blob/main/2.md)
- [CNA](https://www.totolink.net/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.37%
- **EPSS Percentile:** 70.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._