CVE-2026-9408

CRITICAL 9.8

Totolink A8000RU Web Management cstecgi.cgi setStaticDhcpRules os command injection

CVSS Score

9.8

EPSS Score

0.9%

EPSS Percentile

76th

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. Affected by this issue is the function setStaticDhcpRules of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument enable results in os command injection. The attack may be performed from remote. The exploit is now public and may be used.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a8000ru
Published	May 25, 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/365389 vuldb.com: https://vuldb.com/vuln/365389/cti vuldb.com: https://vuldb.com/submit/813443 github.com: https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_340/README.md totolink.net: https://www.totolink.net/

Credits

🔍 LtzHuster (VulDB User)