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Vulnerability record · CVE-2026-9407 · published 25 May 2026

CVE-2026-9407: Command injection vulnerability

A security vulnerability has been detected in Totolink A8000RU 7.1cu.643_b20200521. Affected by this vulnerability is the function setFirewallType of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument firewallType leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.

8.9 CVSS 4.0 High EPSS 3.3% · top 12.1% CWE-77 · Command injectionCWE-78 · OS command injection Deferred
8.9CVSS 4.0 base score, v2 10.0
3.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
23 Jul 2026Last modified by NVD

Description

A security vulnerability has been detected in Totolink A8000RU 7.1cu.643_b20200521. Affected by this vulnerability is the function setFirewallType of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument firewallType leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_339/README.md
https://vuldb.com/submit/813442
https://vuldb.com/vuln/365388
https://vuldb.com/vuln/365388/cti
https://www.totolink.net/

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Source: NIST National Vulnerability Database (record CVE-2026-9407), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.