What’s Vulnerable › Vulnerabilities

CVE-2026-9404: Totolink A8000RU Web Management cstecgi.cgi setDdnsCfg os command injection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-24 · updated 2026-07-23
• Weakness: CWE-77

Description

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Such manipulation of the argument provider leads to os command injection. The attack may be launched remotely. The exploit is publicly available and might be used.

Affected products

• Totolink A8000RU: 7.1cu.643_b20200521

References

• https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_336/README.md
• https://vuldb.com/submit/813439
• https://vuldb.com/vuln/365385
• https://vuldb.com/vuln/365385/cti
• https://www.totolink.net/

Get alerted when CVE-2026-9404 or the next vulnerability affects your stack