CVE-2026-7121

CRITICAL 9.8

Totolink A8000RU CGI cstecgi.cgi setWizardCfg os command injection

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument wizard causes os command injection. It is possible to initiate the attack remotely. The exploit has been published and may be used.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a8000ru
Published	Apr 27, 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/359720 vuldb.com: https://vuldb.com/vuln/359720/cti vuldb.com: https://vuldb.com/submit/800933 github.com: https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_306/README.md totolink.net: https://www.totolink.net/

Credits

🔍 LtzHuster2 (VulDB User)