CVE-2026-9407

CRITICAL 9.8

Totolink A8000RU Web Management cstecgi.cgi setFirewallType os command injection

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a8000ru
Published	May 24, 2026
Last Updated	May 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / A8000RU

7.1cu.643_b20200521

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 LtzHuster (VulDB User)